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Electrochemical Cycling‐Induced Amorphization of Cobalt(II,III) Oxide for Stable High Surface Area Oxygen Evolution Electrocatalysts

机译：电化学循环诱导的钴（II，III）氧化物的氧化物稳定高表面积氧气进化电催化剂

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Abstract > The activity of electrocatalysts critically depends on the chemical coordination around the active sites. Amorphous materials have short‐range atomic ordering while their crystalline counterparts have both short and long‐range ordering. Traditional synthesis of amorphous materials, involving quenching from high temperatures is unsuitable as it results in less porosity and surface area. In this context, room‐temperature syntheses of high surface area amorphous materials with high activity are desirable. Here, we contrast two electrochemical synthesis procedures for generating high surface area amorphous Co <sub>3</sub> O <sub>4</sub> at room temperature via electrochemical ion intercalation/deintercalation and surface oxidation/reduction cycles and evaluate their performance for electrocatalytic oxygen evolution reaction (OER). In the first approach, Li‐ion is used for the intercalation/deintercalation (Li/D?Li) cycles in Co <sub>3</sub> O <sub>4</sub> , which leads to expansion and contraction of structure, inducing amorphization of Co <sub>3</sub> O <sub>4</sub> by the pulverization of crystal structure in non‐aqueous medium. In the second approach, rapid electrochemical surface oxidation/reduction (Ox/Red) of Co <sub>3</sub> O <sub>4</sub> in the aqueous medium leads to the formation of a metastable amorphous structure. The OER specific activity (activity per unit electrochemical surface area) for Li/D?Li?Co <sub>3</sub> O <sub>4</sub> is ～3.5?times and Ox/Red‐ Co <sub>3</sub> O <sub>4</sub> induced amorphization is ～2.5?times higher than their crystalline Co <sub>3</sub> O <sub>4</sub> . The superior OER metrics of both the room‐temperature amorphization techniques are rationalized via the increase in the ratio of Co 2+ /Co 3+ obtained from the Co‐2p XPS spectra. Further, the decrease in overall polarization resistance per site for the OER reaction for both amorphous samples were analyzed from the Tafel plot and electrochemical impedance spectroscopy (EIS). In Li/D?Li?Co <sub>3</sub> O <sub>4</sub> , the Li‐ion intercalation in bulk Co <sub>3</sub> O <sub>4</sub> structure generates higher bulk‐oxygen vacancies leading to higher conductivity and reduction in overall charge‐transport resistance for electrocatalyst. On the other hand, Ox/Red‐ induced amorphization is restricted to the surface or near‐surface only with the formation of a small amount of metallic Co which hampers the OER. </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> > 电催化剂的活性重视取决于活性位点周围的化学协调。非晶材料具有短程原子序，而其结晶对应物具有短期和远程排序。传统的无定形材料合成，涉及从高温淬火的不合适，因为它导致孔隙率和表面积较少。在本文中，需要高度活性的高表面积非晶材料的室温合成。在这里，我们对比产生高表面积无定形CO的两种电化学合成程序 <sub> 3 </ sub> O. <sub> 4 </ sub> 在室温通过电化学离子插入/脱嵌和表面氧化/还原循环，评价它们对电催化氧气进化反应（Oer）的性能。在第一种方法中，锂离子用于CO中的嵌入/脱嵌（LI /DαLI）循环 <sub> 3 </ sub> O. <sub> 4 </ sub> ，这导致结构的扩张和收缩，诱导了CO的非形状 <sub> 3 </ sub> O. <sub> 4 </ sub> 通过在非水介质中的晶体结构粉碎。在第二种方法中，CO的快速电化学表面氧化/还原（牛/红色） <sub> 3 </ sub> O. <sub> 4 </ sub> 在水性介质中导致形成亚稳定的无定形结构。 Li / D的Oer特定活动（每单位电化学表面积的活动）为li？li？co <sub> 3 </ sub> O. <sub> 4 </ sub> 是〜3.5？时间和牛/红色 <sub> 3 </ sub> O. <sub> 4 </ sub> 诱导的无态比其结晶CO〜2.5？ <sub> 3 </ sub> O. <sub> 4 </ sub> 。房间温度非晶化技术的卓越OER度量通过CO的比例的增加来合理化 2 + </ sup> / co. 3 + </ sup> 从CO-2P XPS光谱获得。此外，从Tafel Plot和电化学阻抗光谱（EIS）分析了对两种非晶样品的oer反应的每种位点的整体偏振抗性的降低。在li / d？li？co <sub> 3 </ sub> O. <sub> 4 </ sub> ，散装有限公司中的锂离子嵌入 <sub> 3 </ sub> O. <sub> 4 </ sub> 结构产生更高的氧气空位，导致电催化剂更高的导电性和降低总电荷传输性。另一方面，只有少量金属CO的形成，牛/红诱导的杂于表面或近表面仅妨碍伊尔的金属CO。 </ 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-16042/'>《ChemElectroChem》</a> <b style="margin: 0 2px;">|</b><span>2019年第15期</span><b style="margin: 0 2px;">|</b><span>共9页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gupta Prashant Kumar&option=202" target="_blank" rel="nofollow">Gupta Prashant Kumar;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Saha Sulay&option=202" target="_blank" rel="nofollow">Saha Sulay;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gyanprakash Maurya&option=202" target="_blank" rel="nofollow">Gyanprakash Maurya;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kishor Koshal&option=202" target="_blank" rel="nofollow">Kishor Koshal;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=S.?Pala Raj Ganesh&option=202" target="_blank" rel="nofollow">S.?Pala Raj Ganesh;</a> </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"> <p>Department of Chemical EngineeringIndian Institute of Technology KanpurKanpur 208016 India;</p> <p>Department of Chemical EngineeringIndian Institute of Technology KanpurKanpur 208016 India;</p> <p>Department of Chemical EngineeringIndian Institute of Technology KanpurKanpur 208016 India;</p> <p>Department of Chemical EngineeringIndian Institute of Technology KanpurKanpur 208016 India;</p> <p>Department of Chemical EngineeringIndian Institute of Technology KanpurKanpur 208016 India;</p> </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=Co3O4&option=203" rel="nofollow">Co3O4;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=oxygen evolution reaction&option=203" rel="nofollow">oxygen evolution reaction;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lithiation/De-lithiation&option=203" rel="nofollow">Lithiation/De-lithiation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Oxidation/Reduction&option=203" rel="nofollow">Oxidation/Reduction;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Amorphous&option=203" rel="nofollow">Amorphous;</a> </p> <div class="translation"> 机译：CO3O4;氧气进化反应;锂化/去锂化;氧化/减少;无定形; </div> </li> <li> <span class="lefttit">入库时间</span> <span>2022-08-19 23:30:10</span> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022060424.html">Electrochemical Cycling‐Induced Amorphization of Cobalt(II,III) Oxide for Stable High Surface Area Oxygen Evolution Electrocatalysts</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gupta Prashant Kumar&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Gupta Prashant Kumar,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Saha Sulay&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Saha Sulay,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gyanprakash Maurya&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Gyanprakash Maurya,</a> <a href="/journal-foreign-16042/" target="_blank" rel="nofollow" class="tuijian_authcolor">ChemElectroChem .</a> <span>2019</span><span>,第15期</span> </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：电化学循环诱导的钴（II，III）氧化物的氧化物稳定高表面积氧气进化电催化剂</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022555240.html">Enhanced Catalysis of the Electrochemical Oxygen Evolution Reaction by Iron(III) Ions Adsorbed on Amorphous Cobalt Oxide</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Luo Gong&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Luo Gong,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xin Yu Esther Chng&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Xin Yu Esther Chng,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yonghua Du&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Yonghua Du,</a> <a href="/journal-foreign-18795/" target="_blank" rel="nofollow" class="tuijian_authcolor">ACS catalysis .</a> <span>2018</span><span>,第2期</span> </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：通过吸附在无定形钴氧化物上的铁（III）离子的电化学氧进化反应的增强催化</span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-foreign_advanced-functional-materials_thesis/020418416152.html">Amorphous Cobalt-Iron Hydroxide Nanosheet Electrocatalyst for Efficient Electrochemical and Photo-Electrochemical Oxygen Evolution</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Wei&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Liu Wei,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Hu&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Liu Hu,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Dang Lianna&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Dang Lianna,</a> <a href="/journal-foreign-1418/" target="_blank" rel="nofollow" class="tuijian_authcolor">Advanced Functional Materials .</a> <span>2017</span><span>,第14期</span> </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：非晶态钴铁氢氧化物纳米片电催化剂可高效释放电化学和光电化学氧</span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-conference-foreign_meeting-293807_thesis/0705018827373.html">Electrospun Ruthenium-Cobalt Mixed Oxide Nanotubes As a Highly Active and Stable Electrocatalyst for Oxygen Evolution Reaction</a> <b>[C]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Areum Yu&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Areum Yu,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chongmok Lee&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Chongmok Lee,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=M. 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href="/academic-conference-cn_meeting-17019_thesis/020221751669.html">钴铝双氢氧化物为催化剂前驱制备碳纳米管的电化学电容性能</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=薛瑞丽&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 薛瑞丽</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张校刚&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,张校刚</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=孙志鹏&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,孙志鹏</a> <span> <a href="/conference-cn-17019/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 2009年第十五次全国电化学学术会议 </a> <span> <span> . 2009</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/02031377532.html">高比表面积的复合氧化物脱硝催化剂的制备和性能研究</a> <b>[A] </b> <span> <a 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style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：碳包覆钴（II，III）氧化物层的氧析出电解 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130405283114.html">OXYGEN EVOLUTION ELECTROCATALYSTS WITH CARBON COATED COBALT (II, III) OXIDE LAYERS</a> <b>[P]</b> . <span> 外国专利：  EP3445894A1 </span> <span> . 2019-02-27</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：碳包覆钴（II，III）氧化物层的氧析出电解 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130408815338.html">OXYGEN EVOLUTION ELECTROCATALYSTS WITH CARBON COATED COBALT (II, III) OXIDE LAYERS</a> <b>[P]</b> . <span> 外国专利：  WO2017182923A1 </span> <span> . 2017-10-26</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: 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