超长寿命高效制氢新技术研发成功—新闻

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font: 12px 宋体; float: right"> 选择字号：<span onclick="showsize(12)" style="background-color: #587c19; color: #fff; font-size: 12px; cursor: pointer">小</span> <span onclick="showsize(14)" style="background-color: #587c19; color: #fff; font-size: 12px; cursor: pointer">中</span> <span onclick="showsize(16)" style="background-color: #587c19; color: #fff; font-size: 12px; cursor: pointer"> 大</span> </div> </td> </tr> <tr> <td align="center"> <div id="content1" style=" padding:15px; text-align: left; line-height: 24px; word-wrap: break-word;word-break:break-all" class="f14"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="20"> </td> </tr> <tr> <td align="center" valign="middle" class="style1" style="font-size: 13px; color: #333333; font-family: 宋体; line-height: 20px"> <b></b></td> </tr> <tr> <td align="center" class="style1" style="font-size: 22px; color: #587c19; font-family: 黑体; line-height: 30px"> 超长寿命高效制氢新技术研发成功</td> </tr> <tr> <td align="center" valign="middle" class="style1" style="font-size: 13px; color: #333333; font-family: 宋体; line-height: 20px"> <b></b></td> </tr> </table> <p > </p><p style=";; margin: 0px 0px 26px; text-align: justify; word-break: break-all;">氢能是未来能源体系的重要组成部分，如何实现高效稳定、低成本制氢是能源科技的关键课题。记者17日从中国<span class="errorText">科学院</span>大学获悉，来自该校和北京大学的联合科研团队成功研发出一种超长寿命、高效制氢新技术。该技术通过在铂基催化剂表面覆盖特殊保护层，使催化剂在制氢反应中能够连续工作超1000小时。这一突破让低成本大规模制氢成为可能。相关研究成果在线发表于<span style=";; text-align: justify; text-wrap-mode: wrap;">《自然》</span>杂志。</p> <div style="text-align: center;" class="ueditorOption ueditorOptionModel" contenteditable="true" id="0"> <img src="https://rmtzx.sciencenet.cn/kxwsprint/67afda4ce4b078fce4490d29.png" data-wenge-id="153297" wosname="67afda4ce4b078fce4490d29.png" size="773510" opaid="wenge-oj12qq0r5cj0/" data-mce-src="https://rmtzx.sciencenet.cn/kxwsprint/67afda4ce4b078fce4490d29.png" id="img-null"> <span style="display:block;color: #999;font-size:14px;margin:0;text-align:center;line-height:20px;" class="img_caption" placeholder="请输入图说"></span> </div> <p class="timeLine_wg" style="height:20px;"><span style="display:none"><span contenteditable="false" style="height: 0px; padding: 0px; margin: 0px; display: block; z-index: 9999; color: rgb(255, 255, 255); font-size: 0px; line-height: 0px; position: absolute; border-top: 1px dashed rgb(181, 189, 202); user-select: none; left: 0px; right: 0px; top: 8px;"><span class="timeIdentification" style="width:0px;height:0px;padding:0px;margin:0px;display:block;z-index:9999;color:#fff;position:absolute;font-size: 0px;line-height:0px;border-color:transparent;display:block;border-style:solid;right:0px;border-right-color:#B5BDCA;border-width:8px 8px 8px 0;top:-8px"> </span><span style="width:0px;height:0px;padding:0px;margin:0px;display:block;z-index:9999;color:#fff;position:absolute;font-size: 0px;line-height:0px;border-color:transparent;display:block;border-style:solid;left:0px;border-left-color:#B5BDCA;border-width:8px 0 8px 8px;top:-8px"> </span><span class="hide_time_wg" title="在这插入段落" contenteditable="false" style="width:0px;height:0px;padding:0px;margin:0px;display:block;z-index:9999;color:#fff;position:absolute;font-size: 22px;line-height:17px;height:17px;text-align: center;width:17px;right:17px;background:#B5BDCA;cursor:pointer;top:-8px; border-radius: 2px;" onclick="timeLine(this)">?</span></span></span></p> <p style=";; margin: 0px 0px 26px; text-align: justify; word-break: break-all;">现代化学工业中，催化技术承载着八成以上化工品生产，堪称产业命脉。在催化研究中，高活性与高稳定性，仿佛鱼与熊掌难以兼得。许多高活性催化剂虽能大幅提升反应效率，却常因结构崩塌和活性成分流失而快速失活。“比如，在甲醇-水重整制氢研究中，如何在保持催化剂高活性的同时显著提升其稳定性，已成为该领域亟待突破的关键科学难题。”论文共同通讯作者、中国科学院大学教授周武说。</p> <p style=";; margin: 0px 0px 26px; text-align: justify; word-break: break-all;">在这项研究中，科研人员为破解催化剂稳定性瓶颈，开发了一种新技术：通过在铂基催化剂表面构建稀土氧化物纳米覆盖层，形成纳米级“保护盾”。这种结构可选择性覆盖载体表面的冗余位点，实现对关键催化剂界面的精准保护。实验数据显示，在甲醇-水重整制氢反应中，该新型催化剂成功稳定工作超过1000小时。更令人惊叹的是，该催化剂的活性超高，实现了超过1500万的催化转化数。</p> <p style=";; margin: 0px 0px 26px; text-align: justify; word-break: break-all;">周武表示，这项研究突破了催化科学中的稳定性瓶颈，首次在不降低催化剂活性的前提下，实现了高稳定性的界面催化剂设计，为贵金属催化剂的低成本、高稳定性应用提供了可行方案，预计未来将在绿色能源、氢燃料电池等领域发挥重要作用。</p> <p class="lastPadding" style=";; margin: 0px 0px 26px; text-align: justify; word-break: break-all;">（受访单位供图）</p><div> </div><div style="text-indent:2em;color: #587c19;font-size:13px; ">特别声明：本文转载仅仅是出于传播信息的需要，并不意味着代表本网站观点或证实其内容的真实性；如其他媒体、网站或个人从本网站转载使用，须保留本网站注明的“来源”，并自负版权等法律责任；作者如果不希望被转载或者联系转载稿费等事宜，请与我们接洽。</div> <div style="border-bottom: solid 1px #bfc89d; 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