The Role of Ruthenium on Carbon‐Supported PtRu Catalysts for Electrocatalytic Glycerol Oxidation under Acidic Conditions

摘要

Abstract > A series of binary PtRu catalysts with different Pt/Ru atomic ratios (from 7:3 to 3:7) were synthesized on a carbon support using the colloidal method; they were then used for electrooxidation of glycerol in acid media. X‐ray diffraction, transmission electron microscopy, X‐ray photoelectron spectroscopy, and X‐ray absorption spectroscopy analyses were used to investigate particle size, size distribution, and structural and electronic properties of the prepared catalysts. Ru added to the Pt‐based catalysts caused structural and electronic modifications over the PtRu alloy catalyst formation. The electrocatalytic activities of PtRu/C series catalysts were investigated using cyclic voltammetry. The Pt <sub>5</sub> Ru <sub>5</sub> /C catalyst shows enhanced catalytic activity at least 40?% higher than that of the Pt/C catalyst, with improved stability for glycerol electrooxidation; these improvements are attributed to structural and electronic modifications of the Pt catalysts. Using an electrocatalytic batch reactor, product analysis after the oxidation reaction was performed by high‐performance liquid chromatography to determine and compare the reaction pathways on the Pt/C and PtRu/C catalysts. To understand different catalytic activities of glycerol oxidation on the PtRu alloy surfaces, density functional calculations were performed. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 使用胶体方法在碳载体上合成具有不同Pt / Ru原子比（7：3至3：7）的一系列二元pTrU催化剂;然后将它们用于酸介质中甘油的电氧化。 X射线衍射，透射电子显微镜，X射线光电子能谱和X射线吸收光谱分析研究制备催化剂的粒度，尺寸分布和结构和电子性质。 Ru加入到PT基催化剂上引起PTRU合金催化剂形成的结构和电子改性。使用循环伏安法研究了PTRU / C系列催化剂的电催化活性。 Pt. <sub> 5 </ sub> 茹 <sub> 5 </ sub> / C催化剂显示增强型催化活性比Pt / C催化剂高至少40μm，具有改善的甘油电氧化稳定性;这些改进归因于PT催化剂的结构和电子修饰。使用电催化批量反应器，通过高效液相色谱法进行氧化反应后的产物分析，以确定和比较Pt / C和PTRU / C催化剂上的反应途径。为了了解甘油氧化对PTRU合金表面的不同催化活性，进行密度官能计算。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-16041/'>《ChemCatChem》</a> <b style="margin: 0 2px;">|</b><span>2017年第9期</span><b style="margin: 0 2px;">|</b><span>共8页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1186.html" title="物理化学（理论化学）、化学物理学">物理化学（理论化学）、化学物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=acidity&option=203" rel="nofollow">acidity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=biomass&option=203" rel="nofollow">biomass;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electrochemistry&option=203" rel="nofollow">electrochemistry;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=platinum&option=203" rel="nofollow">platinum;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ruthenium&option=203" rel="nofollow">ruthenium;</a> </p> <div class="translation"> 机译：酸度;生物量;电化学;铂族;钌; 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Xiao Xu</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=徐晓&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,徐晓</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yingke Zhou&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,Yingke Zhou</a> <span> <a href="/conference-cn-4407/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第十一届全国工程陶瓷学术年会 </a> <span> <span> . 2013</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020316293020.html">碳基负载钌铱催化剂的制备及其在甲基磺酸中电催化性能研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李贶瑶&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 李贶瑶</a> <span> . 2021</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120103624009.html">酸性产氧电催化剂含有拉伸应变的钌@二氧化钌核壳纳米球的制备方法</a> <b>[P]</b> . <span> 中国专利： CN111068670A </span> <span> . 2020-04-28</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120112992696.html">钴掺杂钌基催化剂、其制备方法及作为酸性氧析出反应电催化剂的应用</a> <b>[P]</b> . <span> 中国专利： CN113026033A </span> <span> . 2021-06-25</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130416485964.html">Ruthenium/palladium/carbon catalyst useful for electro-oxidation of the formic acid in formic acid fuel cells comprises palladium and ruthenium deposited on a carbon support</a> <b>[P]</b> . <span> 外国专利：  DE102013112288A1 </span> <span> . 2014-05-28</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：可用于甲酸燃料电池中甲酸电氧化的钌/钯/碳催化剂，包括沉积在碳载体上的钯和钌 </span> </p> </li> <li> <div> <b>4. </b><a 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