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electrochemical oxidation</title> <meta name="description" content="Search results for: electrochemical oxidation"> <meta name="keywords" content="electrochemical oxidation"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="electrochemical oxidation"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 1059</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: electrochemical oxidation</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1059</span> Microstructures of Si Surfaces Fabricated by Electrochemical Anodic Oxidation with Agarose Stamps</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hang%20Zhou">Hang Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Limin%20Zhu"> Limin Zhu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the fabrication of microstructures on Si surfaces by using electrochemical anodic oxidation with agarose stamps. The fabricating process is based on a selective anodic oxidation reaction that occurs in the contact area between a stamp and a Si substrate. The stamp which is soaked in electrolyte previously acts as a current flow channel. After forming the oxide patterns as an etching mask, a KOH aqueous is used for the wet etching of Si. A complicated microstructure array of 1 cm2 was fabricated by the method with high accuracy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microstructures" title="microstructures">microstructures</a>, <a href="https://publications.waset.org/abstracts/search?q=anodic%20oxidation" title=" anodic oxidation"> anodic oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=silicon" title=" silicon"> silicon</a>, <a href="https://publications.waset.org/abstracts/search?q=agarose%20stamps" title=" agarose stamps"> agarose stamps</a> </p> <a href="https://publications.waset.org/abstracts/57259/microstructures-of-si-surfaces-fabricated-by-electrochemical-anodic-oxidation-with-agarose-stamps" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57259.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">305</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1058</span> Pollutants Removal from Synthetic Wastewater by the Combined Electrochemical Sequencing Batch Reactor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amin%20Mojiri">Amin Mojiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Akiyoshi%20Ohashi"> Akiyoshi Ohashi</a>, <a href="https://publications.waset.org/abstracts/search?q=Tomonori%20Kindaichi"> Tomonori Kindaichi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Synthetic domestic wastewater was treated via combining treatment methods, including electrochemical oxidation, adsorption, and sequencing batch reactor (SBR). In the upper part of the reactor, an anode and a cathode (Ti/RuO<sub>2</sub>-IrO<sub>2</sub>) were organized in parallel for the electrochemical oxidation procedure. Sodium sulfate (Na<sub>2</sub>SO<sub>4</sub>) with a concentration of 2.5 g/L was applied as the electrolyte. The voltage and current were fixed on 7.50 V and 0.40 A, respectively. Then, 15% working value of the reactor was filled by activated sludge, and 85% working value of the reactor was added with synthetic wastewater. Powdered cockleshell, 1.5 g/L, was added in the reactor to do ion-exchange. Response surface methodology was employed for statistical analysis. Reaction time (h) and pH were considered as independent factors. A total of 97.0% biochemical oxygen demand, 99.9% phosphorous and 88.6% cadmium were eliminated at the optimum reaction time (80.0 min) and pH (6.4). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adsorption" title="adsorption">adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation" title=" electrochemical oxidation"> electrochemical oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=metals" title=" metals"> metals</a>, <a href="https://publications.waset.org/abstracts/search?q=SBR" title=" SBR"> SBR</a> </p> <a href="https://publications.waset.org/abstracts/93816/pollutants-removal-from-synthetic-wastewater-by-the-combined-electrochemical-sequencing-batch-reactor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93816.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">210</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1057</span> Treatment of Oil Recovery Water Using Direct and Indirect Electrochemical Oxidation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tareg%20Omar%20Mansour">Tareg Omar Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Omar%20Elhaji"> Khaled Omar Elhaji </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Model solutions of pentanol in the salt water of various concentrations were subjected to electrochemical oxidation using a dimensionally stable anode (DSA) and a platinised titanium cathode. The removal of pentanol was analysed over time using gas chromatography (GC) and by monitoring the total organic carbon (TOC) concentration of the reaction mixture. It was found that the removal of pentanol occurred more efficiently at higher salinities and higher applied electrical current values. When using a salt concentration of 20,000 ppm and an applied current of 100 mA there was a decrease in concentration of pentanol of 15 %. When the salt concentration and applied current were increased to 58,000 ppm and 500 mA respectively, the decrease in concentration was improved to 64 %. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dimensionally%20stable%20anode%20%28DSA%29" title="dimensionally stable anode (DSA)">dimensionally stable anode (DSA)</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20organic%20hydrocarbon%20%28TOC%29" title=" total organic hydrocarbon (TOC)"> total organic hydrocarbon (TOC)</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20chromatography%20mass%20spectrometry%20%28GCMS%29" title=" gas chromatography mass spectrometry (GCMS)"> gas chromatography mass spectrometry (GCMS)</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation" title=" electrochemical oxidation"> electrochemical oxidation</a> </p> <a href="https://publications.waset.org/abstracts/11461/treatment-of-oil-recovery-water-using-direct-and-indirect-electrochemical-oxidation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11461.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">384</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1056</span> Comparison of Structure and Corrosion Properties of Titanium Oxide Films Prepared by Thermal Oxidation, DC Plasma Oxidation, and by the Sol-Gel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20%C3%87omakl%C4%B1">O. Çomaklı</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Yaz%C4%B1c%C4%B1"> M. Yazıcı</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Yetim"> T. Yetim</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20F.%20Yetim"> A. F. Yetim</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20%C3%87elik"> A. Çelik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, TiO₂ films were deposited on Cp-Ti substrates by thermal oxidation, DC plasma oxidation, and by the sol-gel method. Microstructures of uncoated and TiO₂ film coated samples were examined by X-ray diffraction and SEM. Thin oxide film consisting of anatase (A) and rutile (R) TiO₂ structures was observed on the surface of CP-Ti by under three different treatments. Also, the more intense anatase and rutile peaks appeared at samples plasma oxidized at 700˚C. The thicknesses of films were about 1.8 μm at the TiO₂ film coated samples by sol-gel and about 2.7 μm at thermal oxidated samples, while it was measured as 3.9 μm at the plasma oxidated samples. Electrochemical corrosion behaviour of uncoated and coated specimens was mainly carried out by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) in simulated body fluid (SBF) solution. Results showed that at the plasma oxidated samples exhibited a better resistance property to corrosion than that of other treatments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=TiO%E2%82%82" title="TiO₂">TiO₂</a>, <a href="https://publications.waset.org/abstracts/search?q=CP-Ti" title=" CP-Ti"> CP-Ti</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20properties" title=" corrosion properties"> corrosion properties</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20oxidation" title=" thermal oxidation"> thermal oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20oxidation" title=" plasma oxidation"> plasma oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=sol-gel" title=" sol-gel"> sol-gel</a> </p> <a href="https://publications.waset.org/abstracts/74991/comparison-of-structure-and-corrosion-properties-of-titanium-oxide-films-prepared-by-thermal-oxidation-dc-plasma-oxidation-and-by-the-sol-gel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74991.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">282</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1055</span> Electrochemical Regeneration of GIC Adsorbent in a Continuous Electrochemical Reactor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20N.%20Hussain">S. N. Hussain</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20M.%20A.%20Asghar"> H. M. A. Asghar</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Sattar"> H. Sattar</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20P.%20L.%20Roberts"> E. P. L. Roberts</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Arvia™ introduced a novel technology consisting of adsorption followed by electrochemical regeneration with a graphite intercalation compound adsorbent that takes place in a single unit. The adsorbed species may lead to the formation of intermediate by-products products due to incomplete mineralization during electrochemical regeneration. Therefore, the investigation of breakdown products due to incomplete oxidation is of great concern regarding the commercial applications of this process. In the present paper, the formation of the chlorinated breakdown products during continuous process of adsorption and electrochemical regeneration based on a graphite intercalation compound adsorbent has been investigated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=GIC" title="GIC">GIC</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20regeneration" title=" electrochemical regeneration"> electrochemical regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=chlorphenols" title=" chlorphenols"> chlorphenols</a> </p> <a href="https://publications.waset.org/abstracts/13387/electrochemical-regeneration-of-gic-adsorbent-in-a-continuous-electrochemical-reactor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13387.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">306</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1054</span> Dairy Wastewater Remediation Using Electrochemical Oxidation on Boron Doped Diamond (BDD) Anode</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arwa%20Abdelhay">Arwa Abdelhay</a>, <a href="https://publications.waset.org/abstracts/search?q=Inshad%20Jum%E2%80%99h"> Inshad Jum’h</a>, <a href="https://publications.waset.org/abstracts/search?q=Abeer%20Albsoul"> Abeer Albsoul</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalideh%20Alrawashdeh"> Khalideh Alrawashdeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Dina%20Al%20Tarazi"> Dina Al Tarazi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Treated wastewater reuse has been considered recently as one of the successful management strategies to overcome water shortage in countries suffering from water scarcity. The non-readily biodegradable and recalcitrant pollutants in wastewater cannot be destructed by conventional treatment methods. This paper deals with the electrochemical treatment of dairy wastewater using a promising non-conventional Boron-Doped Diamond (BDD) anode. During the electrochemical process, different operating parameters were investigated, such as electrolysis time, current density, supporting electrolyte, chemical oxygen demand (COD), turbidity as well as absorbance/color. The experimental work revealed that electrochemical oxidation carried out with no added electrolyte has significantly reduced the COD, turbidity, and color (absorbance) by 72%, 76%, and 78% respectively. Results also showed that raising the current density from 5.1 mA/cm² to 7.7 mA/cm² has boosted COD, and color removal to 82.5%, and 83% respectively. However, the current density did not show any significant effect on the turbidity. Interestingly, it was observed that adding Na₂SO₄ and FeCl₃ as supporting electrolytes brought the COD removal to 91% and 97% respectively. Likewise, turbidity and color removal has been enhanced by the addition of the same supporting electrolytes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=boron%20doped-diamond%20anode" title="boron doped-diamond anode">boron doped-diamond anode</a>, <a href="https://publications.waset.org/abstracts/search?q=dairy%20wastewater" title=" dairy wastewater"> dairy wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation" title=" electrochemical oxidation"> electrochemical oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=supporting%20electrolytes" title=" supporting electrolytes"> supporting electrolytes</a> </p> <a href="https://publications.waset.org/abstracts/92414/dairy-wastewater-remediation-using-electrochemical-oxidation-on-boron-doped-diamond-bdd-anode" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92414.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">157</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1053</span> Fabrication of Gold Nanoparticles Self-Assembled Functionalized Improved Graphene on Carbon Paste Electrode for Electrochemical Determination of Levodopa in the Presence of Ascorbic Acid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Ali%20Karimi">Mohammad Ali Karimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hossein%20Tavallali"> Hossein Tavallali</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdolhamid%20Hatefi-Mehrjardi"> Abdolhamid Hatefi-Mehrjardi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, an electrochemical sensor based on gold nanoparticles (AuNPs) functionalized improved graphene (AuNPs-IGE) was fabricated for selective determination of L-dopa in the presence of ascorbic acid by a novel self-assembly method. The AuNP IGE modified carbon paste electrode (AuNPs-IGE/CPE) utilized for investigation of the electrochemical behavior of L-dopa in phosphate buffer solution. Compared to bare CPE, AuNPs-IGE/CPE shows novel properties towards the electrochemical redox of levodopa (L-dopa) in phosphate buffer solution at pH 4.0. The oxidation potential of L-dopa shows a significant decrease at the AuNPs-IGE/CPE. The oxidation current of L-dopa is higher than that of the unmodified CPE. AuNPs-IG/CPE shows excellent electrocatalytic activity for the oxidation of ascorbic acid (AA). Using differential pulse voltammetry (DPV) method, the oxidation current is well linear with L-dopa concentration in the range of 0.4–50 µmol L-1, with a detection limit of about 1.41 nmol L-1 (S/N = 3). Therefore, it was applied to measure L-dopa from real samples that recoveries are 94.6-106.2%. The proposed electrode can also effectively avoid the interference of ascorbic acid, making the proposed sensor suitable for the accurate determination of L-dopa in both pharmaceutical preparations and human body fluids. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gold%20nanoparticles" title="gold nanoparticles">gold nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=improved%20graphene" title=" improved graphene"> improved graphene</a>, <a href="https://publications.waset.org/abstracts/search?q=L-dopa" title=" L-dopa"> L-dopa</a>, <a href="https://publications.waset.org/abstracts/search?q=self-assembly" title=" self-assembly"> self-assembly</a> </p> <a href="https://publications.waset.org/abstracts/46368/fabrication-of-gold-nanoparticles-self-assembled-functionalized-improved-graphene-on-carbon-paste-electrode-for-electrochemical-determination-of-levodopa-in-the-presence-of-ascorbic-acid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46368.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">221</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1052</span> Investigating Water-Oxidation Using a Ru(III) Carboxamide Water Coordinated Complex </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yosra%20M.%20Badiei">Yosra M. Badiei</a>, <a href="https://publications.waset.org/abstracts/search?q=Evelyn%20Ortiz"> Evelyn Ortiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Marisa%20Portenti"> Marisa Portenti</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Szalda"> David Szalda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water-oxidation half-reaction is a critical reaction that can be driven by a sustainable energy source (e.g., solar or wind) and be coupled with a chemical fuel making reaction which stores the released electrons and protons from water (e.g., H₂ or methanol). The use of molecular water-oxidation catalysts (WOC) allow the rationale design of redox active metal centers and provides a better understanding of their structure-activity-relationship. Herein, the structure of a Ru(III) complex bearing a doubly deprotonated N,N'-bis(aryl)pyridine-2,6-dicarboxamide ligand which contains a water molecule in its primary coordination sphere was elucidated by single-crystal X-ray diffraction. Further spectroscopic experimental data and pH-dependent electrochemical studies reveal its water-oxidation reactivity. Emphasis on mechanistic details for O₂ formation of this complex will be addressed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=water-oxidation" title="water-oxidation">water-oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=catalysis" title=" catalysis"> catalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=ruthenium" title=" ruthenium"> ruthenium</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20photosynthesis" title=" artificial photosynthesis"> artificial photosynthesis</a> </p> <a href="https://publications.waset.org/abstracts/108812/investigating-water-oxidation-using-a-ruiii-carboxamide-water-coordinated-complex" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108812.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">201</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1051</span> Electrochemical Anodic Oxidation Synthesis of TiO2 nanotube as Perspective Electrode for the Detection of Phenyl Hydrazine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sadia%20Ameen">Sadia Ameen</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Nazim"> M. Nazim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyumg-Kee%20Seo"> Hyumg-Kee Seo</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyung-Shik%20Shin"> Hyung-Shik Shin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> TiO2 nanotube (NT) arrays were grown on titanium (Ti) foil substrate by electrochemical anodic oxidation and utilized as working electrode to fabricate a highly sensitive and reproducible chemical sensor for the detection of harmful phenyl hydrazine chemical. The fabricated chemical sensor based on TiO2 NT arrays electrode exhibited high sensitivity of ~40.9 µA.mM-1.cm-2 and detection limit of ~0.22 µM with short response time (10s). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=TiO2%20NT" title="TiO2 NT">TiO2 NT</a>, <a href="https://publications.waset.org/abstracts/search?q=phenyl%20hydrazine" title=" phenyl hydrazine"> phenyl hydrazine</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20sensor" title=" chemical sensor"> chemical sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=sensitivity" title=" sensitivity"> sensitivity</a>, <a href="https://publications.waset.org/abstracts/search?q=electrocatalytic%20properties" title=" electrocatalytic properties"> electrocatalytic properties</a> </p> <a href="https://publications.waset.org/abstracts/25165/electrochemical-anodic-oxidation-synthesis-of-tio2-nanotube-as-perspective-electrode-for-the-detection-of-phenyl-hydrazine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25165.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">500</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1050</span> Electrochemical Studies of Nickel Nanoparticles Decorated the Surface of Some Conducting Polymers for Glucose Oxidation in Biofuel Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Z.%20Khalifa">Z. Khalifa</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20M.%20Hassan"> K. M. Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Abdel%20Azzem"> M. Abdel Azzem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Potential strategies for deriving useful forms of renewable high density energy from abundant energy stored in carbohydrates is direct conversion of glucose (GLU) to electrical power. A three novel versatile modified electrodes, synthesized by electrochemical polymerization of organic monomers on glassy carbon electrodes (GC), have been developed for biofuel cells results in stable and long-term power production. Electrocatalytic oxidation of glucose in alkaline solution on conducting polymers electrodes modified by incorporation of Ni nanoparticles (NiNPs) onto poly(1,5-aminonaphthalene) (1,5-PDAN), poly(1,8-diaminonaphthalene) (1,8-PDAN) and poly(1-amino-2-methyl-9,10-anthraquinone) (PAMAQ) was investigated. The electrocatalytic oxidation of glucose at NiNPs-modified 1,5-PDAN/GC, 1,8-PDAN/GC and PAMAQ/GC electrodes has been studied using voltammetry technique. The PDAN electrodes show a slight activity in the potential of interest. The prepared NiNPs/PAMAQ/GC catalyst showed a very interesting catalytic activity that was nicely comparable to the NiNPs/1,5-PDAN/GC, NiNPs/1,8-PDAN/GC modified electrodes. In advance, both shows a significant more catalytic activity compared to the reported data for electrodes for glucose electrocatalytic oxidation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biofuel%20cells" title="biofuel cells">biofuel cells</a>, <a href="https://publications.waset.org/abstracts/search?q=glucose%20oxidation" title=" glucose oxidation"> glucose oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=electrocatalysis" title=" electrocatalysis"> electrocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles%20and%20modified%20electrodes" title=" nanoparticles and modified electrodes"> nanoparticles and modified electrodes</a> </p> <a href="https://publications.waset.org/abstracts/48325/electrochemical-studies-of-nickel-nanoparticles-decorated-the-surface-of-some-conducting-polymers-for-glucose-oxidation-in-biofuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48325.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">251</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1049</span> Structural, Electrochemical and Electrocatalysis Studies of a New 2D Metal-Organic Coordination Polymer of Ni (II) Constructed by Naphthalene-1,4-Dicarboxylic Acid; Oxidation and Determination of Fructose</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zohreh%20Derikvand">Zohreh Derikvand</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One new 2D metal-organic coordination polymer of Ni(II) namely [Ni2(ndc)2(DMSO)4(H2O)]n, where ndc = naphthalene-1,4-dicarboxylic acid and DMSO= dimethyl sulfoxide has been synthesized and characterized by elemental analysis, spectral (IR, UV-Vis), thermal (TG/DTG) analysis and single crystal X-ray diffraction. Compound 1 possesses a 2D layer structure constructed from dinuclear nickel(II) building blocks in which two crystallographically independent Ni2+ ions are bridged by ndc2– ligands and water molecule. The ndc2– ligands adopt μ3 bridging modes, linking the metal centers into a two-dimensional coordination framework. The two independent NiII cations are surrounded by dimethyl sulfoxide and naphthalene-1,4-dicarboxylate molecules in distorted octahedron geometry. In the crystal structures of 1 there are non-classical hydrogen bonding arrangements and C-H–π stacking interactions. Electrochemical behavior of [Ni2(ndc)2(DMSO)4(H2O)]n, (Ni-NDA) on the surface of carbon nanotube (CNTs) glassy carbon electrode (GCE) was described. The surface structure and composition of the sensor were characterized by scanning electron microscopy (SEM). Oxidation of fructose on the surface of modified electrode was investigated with cyclic voltammetry and electrochemical impedance spectroscopy (EIS) and the results showed that the Ni-NDA/CNTs film displays excellent electrochemical catalytic activities towards fructose oxidation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=naphthalene-1" title="naphthalene-1">naphthalene-1</a>, <a href="https://publications.waset.org/abstracts/search?q=4-dicarboxylic%20acid" title="4-dicarboxylic acid">4-dicarboxylic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=crystal%20structure" title=" crystal structure"> crystal structure</a>, <a href="https://publications.waset.org/abstracts/search?q=coordination%20polymer" title=" coordination polymer"> coordination polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=electrocatalysis" title=" electrocatalysis"> electrocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=impedance%20spectroscopy" title=" impedance spectroscopy"> impedance spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/23333/structural-electrochemical-and-electrocatalysis-studies-of-a-new-2d-metal-organic-coordination-polymer-of-ni-ii-constructed-by-naphthalene-14-dicarboxylic-acid-oxidation-and-determination-of-fructose" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23333.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">332</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1048</span> Contribution of Electrochemical Treatment in Treating Textile Dye Wastewater</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Usha%20N.%20Murthy">Usha N. Murthy</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20B.%20Rekha"> H. B. Rekha</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahaveer%20Devoor"> Mahaveer Devoor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The introduction of more stringent pollution regulations, in relation to financial and social pressures for sustainable development, has pressed toward limiting the volumes of industrial and domestic effluents discharged into the environment-as well as to increase the efforts within research and development of new or more efficient wastewater treatment technologies. Considering both discharge volume and effluent composition, wastewater generated by the textile industry is rated as the most polluting among all industrial sectors. The pollution load is mainly due to spent dye baths, which are composed of unreacted dyes, dispersing agents, surfactants, salts and organics. In the present investigation, the textile dye wastewater was characterized by high colour, chemical oxygen demand (COD), total dissolved solids (TDS) and pH. Electrochemical oxidation process for four plate electrodes was carried out at five different current intensities, out of which 0.14A has achieved maximum percentage removal of COD with 75% and 83% of colour. The COD removal rate in kg COD/h/m2 decreases with increase in the current intensity. The energy consumption increases with increase in the current intensity. Hence, textile dye wastewater can be effectively pre-treated by electrochemical oxidation method where the process limits objectionable colour while leaving the COD associated with organics left for natural degradation thus causing a sustainable reduction in pollution load. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20treatment" title="electrochemical treatment">electrochemical treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=COD" title=" COD"> COD</a>, <a href="https://publications.waset.org/abstracts/search?q=colour" title=" colour"> colour</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20engineering" title=" environmental engineering"> environmental engineering</a> </p> <a href="https://publications.waset.org/abstracts/6293/contribution-of-electrochemical-treatment-in-treating-textile-dye-wastewater" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6293.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">278</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1047</span> Comparative Study of Isothermal and Cyclic Oxidation on Titanium Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Poonam%20Yadav">Poonam Yadav</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Bok%20Lee"> Dong Bok Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Isothermal oxidation at 800°C for 50h and Cyclic oxidation at 600°C and 800°C for 40h of Pure Ti and Ti64 were performed in a muffle furnace. In Cyclic oxidation, massive scale spallation occurred, and the oxide scale cracks and peels off were observed at high temperature, it represents oxide scale that formed during cyclic oxidation was spalled out owing to stresses due to thermal shock generated during repetitive oxidation and subsequent cooling. The thickness of scale is larger in cyclic oxidation than the isothermal case. This is due to inward diffusion of oxygen through oxide scales and/or pores and cracks in cyclic oxidation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cyclic" title="cyclic">cyclic</a>, <a href="https://publications.waset.org/abstracts/search?q=diffusion" title=" diffusion"> diffusion</a>, <a href="https://publications.waset.org/abstracts/search?q=isothermal" title=" isothermal"> isothermal</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic" title=" cyclic"> cyclic</a> </p> <a href="https://publications.waset.org/abstracts/19120/comparative-study-of-isothermal-and-cyclic-oxidation-on-titanium-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19120.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">919</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1046</span> Nickel Oxide-Nitrogen-Doped Carbon (Ni/NiOx/NC) Derived from Pyrolysis of 2-Aminoterephthalic Acid for Electrocatalytic Oxidation of Ammonia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yu-Jen%20Shih">Yu-Jen Shih</a>, <a href="https://publications.waset.org/abstracts/search?q=Juan-Zhang%20Lou"> Juan-Zhang Lou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrogenous compounds, such as NH4+/NH3 and NO3-, have become important contaminants in water resources. Excessive concentration of NH3 leads to eutrophication, which poses a threat to aquatic organisms in the environment. Electrochemical oxidation emerged as a promising water treatment technology, offering advantages such as simplicity, small-scale operation, and minimal reliance on additional chemicals. In this study, a nickel-based metal-organic framework (Ni-MOF) was synthesized using 2-amino terephthalic acid (BDC-NH2) and nickel nitrate. The Ni-MOF was further carbonized as derived nickel oxide and nitrogen-carbon composite, Ni/NiOx/NC. The nickel oxide within the 2D porous carbon texture served as active sites for ammonia oxidation. Results of characterization showed that the Ni-MOF was a hexagonal and flaky nanoparticle. With increasing carbonization temperature, the nickel ions in the organic framework re-crystallized as NiO clusters on the surfaces of the 2D carbon. The electrochemical surface area of Ni/NiOx/NC significantly increased as to improve the efficiency of ammonia oxidation. The phase transition of Ni(OH)2⇌NiOOH at around +0.8 V was the primary mediator of electron transfer. Batch electrolysis was conducted under constant current and constant potential modes. The electrolysis parameters included pyrolysis temperatures, pH, current density, initial feed concentration, and electrode potential. The constant current batch experiments indicated that via carbonization at 800 °C, Ni/NiOx/NC(800) was able to decrease the ammonium nitrogen of 50 mg-N/L to below 1 ppm within 4 hours at a current density of 3 mA/cm2 and pH 11 with negligible oxygenated nitrogen formation. The constant potential experiments confirmed that N2 nitrogen selectivity was enhanced up to 90% at +0.8 V. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation" title="electrochemical oxidation">electrochemical oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20oxyhydroxide" title=" nickel oxyhydroxide"> nickel oxyhydroxide</a>, <a href="https://publications.waset.org/abstracts/search?q=metal-organic%20framework" title=" metal-organic framework"> metal-organic framework</a>, <a href="https://publications.waset.org/abstracts/search?q=ammonium" title=" ammonium"> ammonium</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrate" title=" nitrate"> nitrate</a> </p> <a href="https://publications.waset.org/abstracts/177586/nickel-oxide-nitrogen-doped-carbon-ninioxnc-derived-from-pyrolysis-of-2-aminoterephthalic-acid-for-electrocatalytic-oxidation-of-ammonia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177586.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">63</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1045</span> Development of a Sensitive Electrochemical Sensor Based on Carbon Dots and Graphitic Carbon Nitride for the Detection of 2-Chlorophenol and Arsenic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Theo%20H.%20G.%20Moundzounga">Theo H. G. Moundzounga</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Arsenic and 2-chlorophenol are priority pollutants that pose serious health threats to humans and ecology. An electrochemical sensor, based on graphitic carbon nitride (g-C₃N₄) and carbon dots (CDs), was fabricated and used for the determination of arsenic and 2-chlorophenol. The g-C₃N₄/CDs nanocomposite was prepared via microwave irradiation heating method and was dropped-dried on the surface of the glassy carbon electrode (GCE). Transmission electron microscopy (TEM), X-ray diffraction (XRD), photoluminescence (PL), Fourier transform infrared spectroscopy (FTIR), UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS) were used for the characterization of structure and morphology of the nanocomposite. Electrochemical characterization was done by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The electrochemical behaviors of arsenic and 2-chlorophenol on different electrodes (GCE, CDs/GCE, and g-C₃N₄/CDs/GCE) was investigated by differential pulse voltammetry (DPV). The results demonstrated that the g-C₃N₄/CDs/GCE significantly enhanced the oxidation peak current of both analytes. The analytes detection sensitivity was greatly improved, suggesting that this new modified electrode has great potential in the determination of trace level of arsenic and 2-chlorophenol. Experimental conditions which affect the electrochemical response of arsenic and 2-chlorophenol were studied, the oxidation peak currents displayed a good linear relationship to concentration for 2-chlorophenol (R²=0.948, n=5) and arsenic (R²=0.9524, n=5), with a linear range from 0.5 to 2.5μM for 2-CP and arsenic and a detection limit of 2.15μM and 0.39μM respectively. The modified electrode was used to determine arsenic and 2-chlorophenol in spiked tap and effluent water samples by the standard addition method, and the results were satisfying. According to the measurement, the new modified electrode is a good alternative as chemical sensor for determination of other phenols. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrochemistry" title="electrochemistry">electrochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=electrode" title=" electrode"> electrode</a>, <a href="https://publications.waset.org/abstracts/search?q=limit%20of%20detection" title=" limit of detection"> limit of detection</a>, <a href="https://publications.waset.org/abstracts/search?q=sensor" title=" sensor"> sensor</a> </p> <a href="https://publications.waset.org/abstracts/123651/development-of-a-sensitive-electrochemical-sensor-based-on-carbon-dots-and-graphitic-carbon-nitride-for-the-detection-of-2-chlorophenol-and-arsenic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123651.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">144</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1044</span> Oxidation Activity of Platinum-Ruthenium-Tin Ternary Alloy Catalyst on Bio-Alcohol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=An-Ya%20Lo">An-Ya Lo</a>, <a href="https://publications.waset.org/abstracts/search?q=Yi-Chen%20Chung"> Yi-Chen Chung</a>, <a href="https://publications.waset.org/abstracts/search?q=Yun-Chi%20Hsu"> Yun-Chi Hsu</a>, <a href="https://publications.waset.org/abstracts/search?q=Chuan-Ming%20Tseng"> Chuan-Ming Tseng</a>, <a href="https://publications.waset.org/abstracts/search?q=Chiu-Yue%20Lin"> Chiu-Yue Lin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the ternary alloy catalyst Pt20RuxSny (where 20, x, y represent mass fractions of Pt, Ru, and Sn, respectively) was optimized for the preliminary study of bio-ethanol fuel cells (BAFC). The morphology, microstructure, composition, phase-structures, and electrochemical properties of Pt20RuxSny catalyst were examined by SEM, TEM, EDS-mapping, XRD, and potentiostat. The effect of Sn content on electrochemical active surface (EAS) and oxidation activity were discussed. As a result, the additional Sn greatly improves the efficiency of Pt20RuxSny, either x=0 or 10. Through discussing the difference between ethanol and glycol oxidations, the mechanism of tolerance against poisoning has been proved. Overall speaking, the catalytic activity are in the order of Pt20RuxSny > Pt20Rux > Pt20Sny in both ethanol and glycol systems. Finally, Pt20Ru10Sn15 catalyst was successfully applied to demonstrate the feasibility of using bio-alcohol. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pt-Sn%20alloy%20catalyst" title="Pt-Sn alloy catalyst">Pt-Sn alloy catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=Pt-Ru-Sn%20alloy%20catalyst" title=" Pt-Ru-Sn alloy catalyst"> Pt-Ru-Sn alloy catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20cell" title=" fuel cell"> fuel cell</a>, <a href="https://publications.waset.org/abstracts/search?q=ethanol" title=" ethanol"> ethanol</a>, <a href="https://publications.waset.org/abstracts/search?q=ethylene%20glycol" title=" ethylene glycol"> ethylene glycol</a> </p> <a href="https://publications.waset.org/abstracts/54818/oxidation-activity-of-platinum-ruthenium-tin-ternary-alloy-catalyst-on-bio-alcohol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54818.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">417</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1043</span> Perovskite-Type La1−xCaxAlO3 (x=0, 0.2, 0.4, 0.6) as Active Anode Materials for Methanol Oxidation in Alkaline Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Diafi">M. Diafi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Omari"> M. Omari</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Gasmi"> B. Gasmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite-type La1−xCaxAlO3 were synthesized at 1000◦C by a co- precipitation method. The synthesized oxide powders were characterized by X-ray diffraction (XRD) and the oxide powders were produced in the form of films on pretreated Ni-supports by an oxide-slurry painting technique their electrocatalytic activities towards methanol oxidation in alkaline solutions at 25°C using cyclic voltammetry, chronoamperometry, and anodic Tafel polarization techniques. The oxide catalysts followed the rhombohedral hexagonal crystal geometry. The rate of electro-oxidation of methanol was found to increase with increasing substitution of La by Ca in the oxide matrix. The reaction indicated a Tafel slope of ~2.303RT/F, The electrochemical apparent activation energy (〖∆H〗_el^(°#)) was observed to decrease on increasing Ca content. The results point out the optimum electrode activity and stability of the Ca is x=0.6 of composition. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrocatalysis" title="electrocatalysis">electrocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen%20evolution" title=" oxygen evolution"> oxygen evolution</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite-type%20La1%E2%88%92x%20Cax%20AlO3" title=" perovskite-type La1−x Cax AlO3"> perovskite-type La1−x Cax AlO3</a>, <a href="https://publications.waset.org/abstracts/search?q=methanol%20oxidation" title=" methanol oxidation"> methanol oxidation</a> </p> <a href="https://publications.waset.org/abstracts/20621/perovskite-type-la1xcaxalo3-x0-02-04-06-as-active-anode-materials-for-methanol-oxidation-in-alkaline-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20621.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">438</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1042</span> Immobilization of Cobalt Ions on F-Multi-Wall Carbon Nanotubes-Chitosan Thin Film: Preparation and Application for Paracetamol Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shamima%20Akhter">Shamima Akhter</a>, <a href="https://publications.waset.org/abstracts/search?q=Samira%20Bagheri"> Samira Bagheri</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Shalauddin"> M. Shalauddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Wan%20Jefrey%20Basirun"> Wan Jefrey Basirun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present study, a nanocomposite of f-MWCNTs-Chitosan was prepared by the immobilization of Co(II) transition metal through self-assembly method and used for the simultaneous voltammetric determination of paracetamol (PA). The composite material was characterized by field emission scanning electron microscopy (FESEM) and energy dispersive X-Ray analysis (EDX). The electroactivity of cobalt immobilized f-MWCNTs with excellent adsorptive polymer chitosan was assessed during the electro-oxidation of paracetamol. The resulting GCE modified f-MWCNTs/CTS-Co showed electrocatalytic activity towards the oxidation of PA. The electrochemical performances were investigated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and differential pulse voltammetry (DPV) methods. Under favorable experimental conditions, differential pulse voltammetry showed a linear dynamic range for paracetamol solution in the range of 0.1 to 400µmol L⁻¹ with a detection limit of 0.01 µmol L⁻¹. The proposed sensor exhibited significant selectivity for the paracetamol detection. The proposed method was successfully applied for the determination of paracetamol in commercial tablets and human serum sample. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanomaterials" title="nanomaterials">nanomaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=paracetamol" title=" paracetamol"> paracetamol</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20technique" title=" electrochemical technique"> electrochemical technique</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-wall%20carbon%20nanotube" title=" multi-wall carbon nanotube"> multi-wall carbon nanotube</a> </p> <a href="https://publications.waset.org/abstracts/84799/immobilization-of-cobalt-ions-on-f-multi-wall-carbon-nanotubes-chitosan-thin-film-preparation-and-application-for-paracetamol-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84799.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">201</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1041</span> Isothermal and Cyclic Oxidation of the Ti-6Al-4V Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Poonam%20Yadav">Poonam Yadav</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Bok%20Lee"> Dong Bok Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the Ti-6Al-4V alloy was isothermally and cyclically oxidized at 800oC for 40 hours in air, and its oxidation behavior was characterized in terms of its oxidation rate, scaling rate, and scale spallation tendency. The isothermal oxidation tests indicated that Ti-6Al-4V oxidized fast and almost linearly, forming thick oxide scales. However, the scales that formed during isothermal oxidation were adherent. The cyclic oxidation tests indicated that the scales that formed on Ti-6Al-4V were highly susceptible to spallation owing to the large growth stress arisen and the thermal stress imposed during thermal cyclings. The formed scales frequently delaminated into several pieces owing to the excessive stress aroused by the repetitive thermal shock. Particularly, excessive oxidation and heavy spallation occurred at the edge of Ti-6Al-4V during cyclic oxidation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cyclic" title="cyclic">cyclic</a>, <a href="https://publications.waset.org/abstracts/search?q=isothermal" title=" isothermal"> isothermal</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidation" title=" oxidation"> oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=spallation" title=" spallation"> spallation</a> </p> <a href="https://publications.waset.org/abstracts/28970/isothermal-and-cyclic-oxidation-of-the-ti-6al-4v-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28970.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">371</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1040</span> Biosensors for Parathion Based on Au-Pd Nanoparticles Modified Electrodes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tian-Fang%20Kang">Tian-Fang Kang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chao-Nan%20Ge"> Chao-Nan Ge</a>, <a href="https://publications.waset.org/abstracts/search?q=Rui%20Li"> Rui Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An electrochemical biosensor for the determination of organophosphorus pesticides was developed based on electrochemical co-deposition of Au and Pd nanoparticles on glassy carbon electrode (GCE). Energy disperse spectroscopy (EDS) analysis was used for characterization of the surface structure. Scanning electron micrograph (SEM) demonstrates that the films are uniform and the nanoclusters are homogeneously distributed on the GCE surface. Acetylcholinesterase (AChE) was immobilized on the Au and Pd nanoparticle modified electrode (Au-Pd/GCE) by cross-linking with glutaraldehyde. The electrochemical behavior of thiocholine at the biosensor (AChE/Au-Pd/GCE) was studied. The biosensors exhibited substantial electrocatalytic effect on the oxidation of thiocholine. The peak current of linear scan voltammetry (LSV) of thiocholine at the biosensor is proportional to the concentration of acetylthiocholine chloride (ATCl) over the range of 2.5 × 10-6 to 2.5 × 10-4 M in 0.1 M phosphate buffer solution (pH 7.0). The percent inhibition of acetylcholinesterase was proportional to the logarithm of parathion concentration in the range of 4.0 × 10-9 to 1.0 × 10-6 M. The detection limit of parathion was 2.6 × 10-9 M. The proposed method exhibited high sensitivity and good reproducibility. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acetylcholinesterase" title="acetylcholinesterase">acetylcholinesterase</a>, <a href="https://publications.waset.org/abstracts/search?q=Au-Pd%20nanoparticles" title=" Au-Pd nanoparticles"> Au-Pd nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20biosensors" title=" electrochemical biosensors"> electrochemical biosensors</a>, <a href="https://publications.waset.org/abstracts/search?q=parathion" title=" parathion "> parathion </a> </p> <a href="https://publications.waset.org/abstracts/17756/biosensors-for-parathion-based-on-au-pd-nanoparticles-modified-electrodes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17756.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">407</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1039</span> Development of (Cu2o-Zno) Binary Oxide Anode for Electrochemical Degradation of Dye</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20El%20Hajji">M. El Hajji</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Hallaoui"> A. Hallaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Bazzi"> L. Bazzi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Benlhachemi"> A. Benlhachemi</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Jbara"> O. Jbara</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Tara"> A. Tara</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Bakiz"> B. Bakiz</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Bazzi"> L. Bazzi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Hilali"> M. Hilali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was the development of zinc-copper binary oxide "Cu2O-ZnO" thin films by the electrochemical method "cathodic electrodeposition" and their uses for the degradation of a basic dye "Congo Red" by direct anodic oxidation. The anode materials synthesized were characterized by X-ray diffraction "XRD" and by scanning electron microscopy "SEM" coupled to EDS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cu2O-ZnO%20thin%20films" title="Cu2O-ZnO thin films">Cu2O-ZnO thin films</a>, <a href="https://publications.waset.org/abstracts/search?q=cathodic%20electrodeposition" title=" cathodic electrodeposition"> cathodic electrodeposition</a>, <a href="https://publications.waset.org/abstracts/search?q=electrodegradation" title=" electrodegradation"> electrodegradation</a>, <a href="https://publications.waset.org/abstracts/search?q=Congo%20Red" title=" Congo Red"> Congo Red</a>, <a href="https://publications.waset.org/abstracts/search?q=BDD" title=" BDD"> BDD</a> </p> <a href="https://publications.waset.org/abstracts/17657/development-of-cu2o-zno-binary-oxide-anode-for-electrochemical-degradation-of-dye" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17657.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">343</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1038</span> Homoleptic Complexes of a Tetraphenylporphyrinatozinc(II)-conjugated 2,2':6',6"-Terpyridine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Angelo%20Lanzilotto">Angelo Lanzilotto</a>, <a href="https://publications.waset.org/abstracts/search?q=Martin%20Kuss-Petermann"> Martin Kuss-Petermann</a>, <a href="https://publications.waset.org/abstracts/search?q=Catherine%20E.%20Housecroft"> Catherine E. Housecroft</a>, <a href="https://publications.waset.org/abstracts/search?q=Edwin%20C.%20Constable"> Edwin C. Constable</a>, <a href="https://publications.waset.org/abstracts/search?q=Oliver%20S.%20Wenger"> Oliver S. Wenger</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We recently described the synthesis of a new tetraphenylporphyrinatozinc(II)-conjugated 2,2':6',6"-terpyridine (1) in which the tpy domain enables the molecule to act as a metalloligand. The synthetic route to 1 has been optimized, the importance of selecting a particular sequence of synthetic steps will be discussed. Three homoleptic complexes have been prepared, [Zn(1)₂]²⁺, [Fe(1)₂]²⁺ and [Ru(1)₂]²⁺, and have been isolated as the hexafluoridophosphate salts. Spectroelectrochemical measurements have been performed and the spectral changes ascribed to redox processes are partitioned on either the porphyrin or the terpyridine units. Compound 1 undergoes a reversible one-electron oxidation/reduction. The removal/gain of a second electron leads to a further irreversible chemical transformation. For the homoleptic [M(1)₂]²⁺ complexes, a suitable potential can be chosen at which both the oxidation and the reduction of the {ZnTPP} core are reversible. When the homoleptic complex contains a redox active metal such as Fe or Ru, spectroelectrochemistry has been used to investigate the metal to ligand charge transfer (MLCT) transition. The latter is sensitive to the oxidation state of the metal, and electrochemical oxidation of the metal center suppresses it. Detailed spectroelectrochemical studies will be presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=homoleptic%20complexes" title="homoleptic complexes">homoleptic complexes</a>, <a href="https://publications.waset.org/abstracts/search?q=spectroelectrochemistry" title=" spectroelectrochemistry"> spectroelectrochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=tetraphenylporphyrinatozinc%28II%29" title=" tetraphenylporphyrinatozinc(II)"> tetraphenylporphyrinatozinc(II)</a>, <a href="https://publications.waset.org/abstracts/search?q=2" title=" 2"> 2</a>, <a href="https://publications.waset.org/abstracts/search?q=2%27%3A6%27" title="2':6'">2':6'</a>, <a href="https://publications.waset.org/abstracts/search?q=6%22-terpyridine" title="6"-terpyridine">6"-terpyridine</a> </p> <a href="https://publications.waset.org/abstracts/59759/homoleptic-complexes-of-a-tetraphenylporphyrinatozincii-conjugated-2266-terpyridine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59759.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">220</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1037</span> Combination of Electrochemical Impedance Spectroscopy and Electromembrane Extraction for the Determination of Zolpidem Using Modified Screen-Printed Electrode</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Naeemy">Ali Naeemy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mir%20Ghasem%20Hoseini"> Mir Ghasem Hoseini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, for the first time, an analytical method developed and validated by combining electrochemical impedance spectroscopy and electromembrane extraction (EIS-EME) by Vulcan/poly pyrrole nanocomposite modified screen-printed electrode (PPY–VU/SPE) for accurately quantifying zolpidem. EME parameters optimized, including solvent composition, voltage, pH adjustments and extraction time. Zolpidem was transferred from a donor solution (pH 5) to an acceptor solution (pH 13) using a hollow fiber in 1-octanol as a membrane, driven by a 60 V voltage for 25 minutes, ensuring precise and selective extraction. In comparison with SPE, VU/SPE and PPY/SPE, the PPY–VU/SPE was much more efficient for ZP oxidation. Calibration curves with good linearity were obtained in the concentration range of 2-75 µmol L-1 using the EIS-EME with the detection limit of 0.5 µmol L-1 . Finally, the EIS-EME by using the PPY– VU/SPE was successfully used to determine ZP in tablet dosage form, urine and plasma samples. Keywords: Electrochemical impedance spectroscopy, Electromembrane extraction, Zolpidem, Vulcan, poly pyrrole, Screen printed electrode <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20impedance%20spectroscopy" title="electrochemical impedance spectroscopy">electrochemical impedance spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=electromembrane%20extraction" title=" electromembrane extraction"> electromembrane extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=screen%20printed%20electrode" title=" screen printed electrode"> screen printed electrode</a>, <a href="https://publications.waset.org/abstracts/search?q=zolpidem" title=" zolpidem"> zolpidem</a> </p> <a href="https://publications.waset.org/abstracts/186746/combination-of-electrochemical-impedance-spectroscopy-and-electromembrane-extraction-for-the-determination-of-zolpidem-using-modified-screen-printed-electrode" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186746.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">40</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1036</span> Electrochemical Inactivation of Toxic Cyanobacteria and Degradation of Cyanotoxins</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Belal%20Bakheet">Belal Bakheet</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Beardall"> John Beardall</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiwang%20Zhang"> Xiwang Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20McCarthy"> David McCarthy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The potential risks associated with toxic cyanobacteria have raised growing environmental and public health concerns leading to an increasing effort into researching ways to bring about their removal from water, together with destruction of their associated cyanotoxins. A variety of toxins are synthesized by cyanobacteria and include hepatotoxins, neurotoxins, and cytotoxins which can cause a range of symptoms in humans from skin irritation to serious liver and nerve damage. Therefore drinking water treatment processes should ensure the consumers’ safety by removing both cyanobacterial cells, and cyanotoxins from the water. Cyanobacterial cells and cyanotoxins presented challenges to the conventional water treatment systems; their accumulation within drinking water treatment plants has been reported leading to plants shut down. Thus, innovative and effective water purification systems to tackle cyanobacterial pollution are required. In recent years there has been increasing attention to the electrochemical oxidation process as a feasible alternative disinfection method which is able to generate in situ a variety of oxidants that would achieve synergistic effects in the water disinfection process and toxin degradation. By utilizing only electric current, the electrochemical process through electrolysis can produce reactive oxygen species such as hydroxyl radicals from the water, or other oxidants such as chlorine from chloride ions present in the water. From extensive physiological and morphological investigation of cyanobacterial cells during electrolysis, our results show that these oxidants have significant impact on cell inactivation, simultaneously with cyanotoxins removal without the need for chemicals addition. Our research aimed to optimize existing electrochemical oxidation systems and develop new systems to treat water containing toxic cyanobacteria and cyanotoxins. The research covers detailed mechanism study on oxidants production and cell inactivation in the treatment under environmental conditions. Overall, our study suggests that the electrochemical treatment process e is an effective method for removal of toxic cyanobacteria and cyanotoxins. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=toxic%20cyanobacteria" title="toxic cyanobacteria">toxic cyanobacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=cyanotoxins" title=" cyanotoxins"> cyanotoxins</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20process" title=" electrochemical process"> electrochemical process</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidants" title=" oxidants"> oxidants</a> </p> <a href="https://publications.waset.org/abstracts/92234/electrochemical-inactivation-of-toxic-cyanobacteria-and-degradation-of-cyanotoxins" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92234.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">240</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1035</span> Electrochemical Detection of Polycyclic Aromatic Hydrocarbons in Urban Air by Exfoliated Graphite Based Electrode</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Sacko">A. Sacko</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Nyoni"> H. Nyoni</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20A.%20M.%20Msagati"> T. A. M. Msagati</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Ntsendwana"> B. Ntsendwana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Carbon based materials to target environmental pollutants have become increasingly recognized in science. Electrochemical methods using carbon based materials are notable methods for high sensitive detection of organic pollutants in air. It is therefore in this light that exfoliated graphite electrode was fabricated for electrochemical analysis of PAHs in urban atmospheric air. The electrochemical properties of the graphite electrode were studied using CV and EIS in the presence of acetate buffer supporting electrolyte with 2 Mm ferricyanide as a redox probe. The graphite electrode showed enhanced current response which confirms facile kinetics and enhanced sensitivity. However, the peak to peak (DE) separation increased as a function of scan rate. The EIS showed a high charger transfer resistance. The detection phenanthrene on the exfoliated graphite was studied in the presence of acetate buffer solution at PH 3.5 using DPV. The oxidation peak of phenanthrene was observed at 0.4 V. Under optimized conditions (supporting electrolyte, pH, deposition time, etc.). The detection limit observed was at 5x 10⁻⁸ M. Thus the results demonstrate with further optimization and modification lower concentration detection can be achieved. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20detection" title="electrochemical detection">electrochemical detection</a>, <a href="https://publications.waset.org/abstracts/search?q=exfoliated%20graphite" title=" exfoliated graphite"> exfoliated graphite</a>, <a href="https://publications.waset.org/abstracts/search?q=PAHs%20%28polycyclic%20aromatic%20hydrocarbons%29" title=" PAHs (polycyclic aromatic hydrocarbons)"> PAHs (polycyclic aromatic hydrocarbons)</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20air" title=" urban air"> urban air</a> </p> <a href="https://publications.waset.org/abstracts/78454/electrochemical-detection-of-polycyclic-aromatic-hydrocarbons-in-urban-air-by-exfoliated-graphite-based-electrode" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78454.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">204</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1034</span> Copper Selenide Nanobelts: An Electrocatalyst for Methanol Electro-Oxidation Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nabi%20Ullah">Nabi Ullah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The energy crisis of the current society has attracted research attention for alternative energy sources. Methanol oxidation is the source of energy but needs efficient electrocatalysts like Pt. However, their practical ability is hindered due to cost and poisoning effects. In this regard, an efficient catalyst is required for methanol oxidation. Herein, high temperature, pressure, and diethylenetryamine (DETA) as reaction medium/structure directing agent during the solvothermal method are used for nanobelt Cu₃Se₂/Cu₁.₈Se (mostly hexagonal appearance) formation. The electrocatalyst shows optimized methanol electrooxidation reaction (MOR) response in 1 M KOH and 0.5 M methanol at a scan rate of 50 mV/s and delivers a current density of 7.12 mA/mg at a potential of 0.65 V (vs Ag/AgCl). The catalyst exhibits high electrochemical active surface area (ECSA) (0.088 mF/cm²) and low Rct with good stability for 3600 s, which favors its high MOR performance. This high response is due to its 2D hexagonal nanobelt morphology, which provides a large surface area for reaction. The space among nanobelts reduces diffusion kinetics, and the rough/irregular edge increases the reaction site to improve the methanol oxidation reaction overall. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20application" title="energy application">energy application</a>, <a href="https://publications.waset.org/abstracts/search?q=electrocatalysis" title=" electrocatalysis"> electrocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=MOR" title=" MOR"> MOR</a>, <a href="https://publications.waset.org/abstracts/search?q=nanobelt" title=" nanobelt"> nanobelt</a> </p> <a href="https://publications.waset.org/abstracts/178090/copper-selenide-nanobelts-an-electrocatalyst-for-methanol-electro-oxidation-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178090.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">67</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1033</span> Estimation and Removal of Chlorophenolic Compounds from Paper Mill Waste Water by Electrochemical Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Sharma">R. Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Kumar"> S. Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Sharma"> C. Sharma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A number of toxic chlorophenolic compounds are formed during pulp bleaching. The nature and concentration of these chlorophenolic compounds largely depends upon the amount and nature of bleaching chemicals used. These compounds are highly recalcitrant and difficult to remove but are partially removed by the biochemical treatment processes adopted by the paper industry. Identification and estimation of these chlorophenolic compounds has been carried out in the primary and secondary clarified effluents from the paper mill by GCMS. Twenty-six chorophenolic compounds have been identified and estimated in paper mill waste waters. Electrochemical treatment is an efficient method for oxidation of pollutants and has successfully been used to treat textile and oil waste water. Electrochemical treatment using less expensive anode material, stainless steel electrodes has been tried to study their removal. The electrochemical assembly comprised a DC power supply, a magnetic stirrer and stainless steel (316 L) electrode. The optimization of operating conditions has been carried out and treatment has been performed under optimized treatment conditions. Results indicate that 68.7% and 83.8% of cholorphenolic compounds are removed during 2 h of electrochemical treatment from primary and secondary clarified effluent respectively. Further, there is a reduction of 65.1, 60 and 92.6% of COD, AOX and color, respectively for primary clarified and 83.8%, 75.9% and 96.8% of COD, AOX and color, respectively for secondary clarified effluent. EC treatment has also been found to increase significantly the biodegradability index of wastewater because of conversion of non- biodegradable fraction into biodegradable fraction. Thus, electrochemical treatment is an efficient method for the degradation of cholorophenolic compounds, removal of color, AOX and other recalcitrant organic matter present in paper mill waste water. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chlorophenolics" title="chlorophenolics">chlorophenolics</a>, <a href="https://publications.waset.org/abstracts/search?q=effluent" title=" effluent"> effluent</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20treatment" title=" electrochemical treatment"> electrochemical treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=wastewater" title=" wastewater"> wastewater</a> </p> <a href="https://publications.waset.org/abstracts/38459/estimation-and-removal-of-chlorophenolic-compounds-from-paper-mill-waste-water-by-electrochemical-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38459.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">387</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1032</span> Preparation and Characterization of BaMnO₃ Application to the Photocatalytic Oxidation of Paracetamol under Solar Light</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dahmane%20Mohamed">Dahmane Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Tab%20Asma"> Tab Asma</a>, <a href="https://publications.waset.org/abstracts/search?q=Trari%20Mohamed"> Trari Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> BaMnO₃ nanoparticles were synthesized by a nitrate route. Its structure and physical properties were characterized by means of X-ray powder diffraction, radio crystallographic analysis, ultraviolet-visible absorption spectroscopy in diffuse reflectance mode, infrared spectroscopy, and electrochemical measurements. The optical study showed that barium manganese oxide presents a direct transition with band energy 2.13 eV. The electrochemical study allowed us to identify the redox peaks and the corrosion parameters. Capacitance measurement clearly showed n-type conductivity. The photodegradation of paracetamol by BaMnO₃ was followed by UV-visible spectrophotometry; the results were then confirmed by HPLC. BaMnO₃ has shown its photocatalytic efficiency in the photodegradation of 10 mg/L paracetamol under solar irradiation, with a yield of ≈ 88%. The kinetic study has shown that paracetamol degrades with first-order kinetics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BaMnO%E2%82%83" title="BaMnO₃">BaMnO₃</a>, <a href="https://publications.waset.org/abstracts/search?q=photodegradation" title=" photodegradation"> photodegradation</a>, <a href="https://publications.waset.org/abstracts/search?q=paracetamol" title=" paracetamol"> paracetamol</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20measurements" title=" electrochemical measurements"> electrochemical measurements</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20light" title=" solar light"> solar light</a> </p> <a href="https://publications.waset.org/abstracts/166634/preparation-and-characterization-of-bamno3-application-to-the-photocatalytic-oxidation-of-paracetamol-under-solar-light" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166634.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">103</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1031</span> Development of an Inexpensive Electrocatalytic Energy Material: Cu-Ni-CeO2 for High Performance Alcoholic Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sujit%20Kumar%20Guchhait">Sujit Kumar Guchhait</a>, <a href="https://publications.waset.org/abstracts/search?q=Subir%20Paul"> Subir Paul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the major research areas is to find an alternative source of energy to fulfill the energy crisis and environmental problems. The Fuel cell is such kind of energy producing unit. Use of fuel cell to produce renewable energy for commercial purpose is limited by the high cost of Pt based electrode material. Development of high energetic, as well as inexpensive fuel cell electrode materials, is needs of hour to produce clean energy using derive bio-fuel. In this present investigation, inexpensive Cu-Ni-CeO2 electrode material has been synthesized by using pulse current. The surface morphology of the electrode materials is controlled by several deposition parameters to increase the rate of electrochemical oxidation of alcoholic fuel, ethanol. The electrochemical characterization of the developed material was done by Cyclic Voltammetry (CV) and Chronoamperometry (CA) and Electrochemical Impedance Spectroscopy test. It is interesting to find that both these materials have shown high electrocatalytic properties in terms of high exchange current density (I0), low polarization resistance (Rp) and low impedance. It is seen that the addition of CeO2 to Ni-Cu has outperformed Pt as far as high electrocatalytic properties are concerned. The exchange current density on the Cu-Ni-CeO2 electrode surface for ethanol oxidation is about eight times higher than the same on the Pt surface with much lower polarization resistance than the later. The surface morphology of the electrode materials has been revealed by Field Effect Scanning Electron Microscope (FESEM). It is seen that grains are narrow and subspherical with 3D surface containing pores in between two elongated grains. XRD study exhibits the presence of Ni and CeO2 on the Cu surface. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electro-catalyst" title="electro-catalyst">electro-catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=alcoholic%20fuel" title=" alcoholic fuel"> alcoholic fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic%20voltammetry" title=" cyclic voltammetry"> cyclic voltammetry</a>, <a href="https://publications.waset.org/abstracts/search?q=potentiodynamic%20polarization" title=" potentiodynamic polarization"> potentiodynamic polarization</a>, <a href="https://publications.waset.org/abstracts/search?q=EIS" title=" EIS"> EIS</a>, <a href="https://publications.waset.org/abstracts/search?q=XRD" title=" XRD"> XRD</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM"> SEM</a> </p> <a href="https://publications.waset.org/abstracts/48801/development-of-an-inexpensive-electrocatalytic-energy-material-cu-ni-ceo2-for-high-performance-alcoholic-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48801.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">302</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1030</span> Electrochemical Behavior of Cocaine on Carbon Paste Electrode Chemically Modified with Cu(II) Trans 3-MeO Salcn Complex</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alex%20Soares%20Castro">Alex Soares Castro</a>, <a href="https://publications.waset.org/abstracts/search?q=Matheus%20Manoel%20Teles%20de%20Menezes"> Matheus Manoel Teles de Menezes</a>, <a href="https://publications.waset.org/abstracts/search?q=Larissa%20Silva%20de%20Azevedo"> Larissa Silva de Azevedo</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Carolina%20Caleffi%20Patelli"> Ana Carolina Caleffi Patelli</a>, <a href="https://publications.waset.org/abstracts/search?q=Osmair%20Vital%20de%20Oliveira"> Osmair Vital de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Aline%20Thais%20Bruni"> Aline Thais Bruni</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcelo%20Firmino%20de%20Oliveira"> Marcelo Firmino de Oliveira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Considering the problem of the seizure of illicit drugs, as well as the development of electrochemical sensors using chemically modified electrodes, this work shows the study of the electrochemical activity of cocaine in carbon paste electrode chemically modified with Cu (II) trans 3-MeO salcn complex. In this context, cyclic voltammetry was performed on 0.1 mol.L⁻¹ KCl supporting electrolyte at a scan speed of 100 mV s⁻¹, using an electrochemical cell composed of three electrodes: Ag /AgCl electrode (filled KCl 3 mol.L⁻¹) from Metrohm® (reference electrode); a platinum spiral electrode, as an auxiliary electrode, and a carbon paste electrode chemically modified with Cu (II) trans 3-MeO complex (as working electrode). Two forms of cocaine were analyzed: cocaine hydrochloride (pH 3) and cocaine free base form (pH 8). The PM7 computational method predicted that the hydrochloride form is more stable than the free base form of cocaine, so with cyclic voltammetry, we found electrochemical signal only for cocaine in the form of hydrochloride, with an anodic peak at 1.10 V, with a linearity range between 2 and 20 μmol L⁻¹ had LD and LQ of 2.39 and 7.26x10-5 mol L⁻¹, respectively. The study also proved that cocaine is adsorbed on the surface of the working electrode, where through an irreversible process, where only anode peaks are observed, we have the oxidation of cocaine, which occurs in the hydrophilic region due to the loss of two electrons. The mechanism of this reaction was confirmed by the ab-inito quantum method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ab-initio%20computational%20method" title="ab-initio computational method">ab-initio computational method</a>, <a href="https://publications.waset.org/abstracts/search?q=analytical%20method" title=" analytical method"> analytical method</a>, <a href="https://publications.waset.org/abstracts/search?q=cocaine" title=" cocaine"> cocaine</a>, <a href="https://publications.waset.org/abstracts/search?q=Schiff%20base%20complex" title=" Schiff base complex"> Schiff base complex</a>, <a href="https://publications.waset.org/abstracts/search?q=voltammetry" title=" voltammetry"> voltammetry</a> </p> <a href="https://publications.waset.org/abstracts/93544/electrochemical-behavior-of-cocaine-on-carbon-paste-electrode-chemically-modified-with-cuii-trans-3-meo-salcn-complex" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93544.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">194</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=electrochemical%20oxidation&page=4">4</a></li> <li class="page-item"><a class="page-link" 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