Cobalt Based Nanoparticles Embedded Reduced Graphene Oxide Aerogel for Hydrogen Evolution Electrocatalyst

Koo Sung Hwan; Li Dong Jun; Yun Taeyeong; Choi Dong Sung; Lee Kyung Eun; Lee Gil Yong; Oh Youngtak; Lim Joonwon; Padmajan Sasikala Suchithra; Lee Ho Jin; Kim In Ho; Jung Hong Ju; Jain Rishabh; Kim Sang Ouk

摘要

Abstract > Efficient water electrolysis catalyst is highly demanded for the production of hydrogen as a sustainable energy fuel. It is reported that cobalt derived nanoparticle (CoS <sub>2</sub> , CoP, CoS|P) decorated reduced graphene oxide (rGO) composite aerogel catalysts for highly active and reliable hydrogen evolution reaction electrocatalysts. 7 nm level cobalt derived nanoparticles are synthesized over graphene aerogel surfaces with excellent surface coverage and maximal expose of active sites. CoS|P/rGO hybrid aerogel composites show an excellent catalytic activity with overpotential of ≈169 mV at a current density of ≈10 mA cm ?2 . Accordingly, efficient charge transfer is attained with Tafel slope of ≈52 mV dec ?1 and a charge transfer resistance ( R <sub>ct</sub> ) of ≈12 Ω. This work suggests a viable route toward ultrasmall, uniform nanoparticles decorated graphene surfaces with well‐controlled chemical compositions, which can be generally useful for various applications commonly requiring large exposure of active surface area as well as robust interparticle charger transfer. </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> > 高效的水电解催化剂对于作为可持续能量燃料的氢气产生氢气。据报道，钴衍生的纳米粒子（COS <sub> 2 </ sub> ，COP，COS | P）装饰了石墨烯（RGO）复合气凝胶催化剂，用于高活性和可靠的氢气进化反应电催化剂。通过石墨烯气凝胶表面合成7nm型钴衍生的纳米颗粒，具有优异的表面覆盖率和活性位点的最大暴露。 COS | P / RGO杂交气凝胶复合材料显示出优异的催化活性，具有≈10mmm的过电流，其电流密度为≈10macm ？2 </ sup> 。因此，在Tafel斜率为≈52MVDEC的塔拉斐尔坡度实现了有效的电荷转移？1 </ sup> 和电荷转移阻力（ R </ I> <sub> ct </ sub> ）≈12Ω。这项工作表明，具有良好控制的化学组合物的均匀纳米颗粒的可行途径，均匀的纳米颗粒装饰石墨烯表面，其通常可用于通常需要大暴露的活性表面积以及鲁棒颗粒颗粒充电器转移的各种应用。 </ 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-28901/'>《Particle & Particle Systems Characterization: Measurement and Description of Particle Properties and Behavior in Powders and Other Disperse Systems》</a> <b style="margin: 0 2px;">|</b><span>2019年第7期</span><b style="margin: 0 2px;">|</b><span>共7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=Koo Sung Hwan&option=202" target="_blank" rel="nofollow">Koo Sung Hwan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Li Dong Jun&option=202" target="_blank" rel="nofollow">Li Dong Jun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yun Taeyeong&option=202" target="_blank" rel="nofollow">Yun Taeyeong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Choi Dong Sung&option=202" target="_blank" rel="nofollow">Choi Dong Sung;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lee Kyung Eun&option=202" target="_blank" rel="nofollow">Lee Kyung Eun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lee Gil Yong&option=202" target="_blank" rel="nofollow">Lee Gil Yong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Oh Youngtak&option=202" target="_blank" rel="nofollow">Oh Youngtak;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lim Joonwon&option=202" target="_blank" rel="nofollow">Lim Joonwon;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Padmajan Sasikala Suchithra&option=202" target="_blank" rel="nofollow">Padmajan Sasikala Suchithra;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lee Ho Jin&option=202" target="_blank" rel="nofollow">Lee Ho Jin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kim In Ho&option=202" target="_blank" rel="nofollow">Kim In Ho;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Jung Hong Ju&option=202" target="_blank" rel="nofollow">Jung Hong Ju;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Jain Rishabh&option=202" target="_blank" rel="nofollow">Jain Rishabh;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kim Sang Ouk&option=202" target="_blank" rel="nofollow">Kim Sang Ouk;</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 Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</p> <p>Department of Materials Science and EngineeringKAIST291 Daehak‐ro Yuseong‐gu Daejeon 34141 Republic of Korea;</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/6960.html" title="特种结构材料">特种结构材料;</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=cobalt phosphosulfide&option=203" rel="nofollow">cobalt phosphosulfide;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electrocatalyst&option=203" rel="nofollow">electrocatalyst;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=graphene oxide&option=203" rel="nofollow">graphene oxide;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=hydrogen evolution reaction&option=203" rel="nofollow">hydrogen evolution reaction;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=nanoparticle&option=203" rel="nofollow">nanoparticle;</a> </p> <div class="translation"> 机译：钴磷硫化物;电催化剂;石墨烯;氢气进化反应;纳米粒子; </div> </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/0704024384940.html">Hydrogen Evolution Reaction: Cobalt Based Nanoparticles Embedded Reduced Graphene Oxide Aerogel for Hydrogen Evolution Electrocatalyst (Part. 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张海杰&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 张海杰</a> <span> . 2015</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061204067913.html">一种氧化石墨烯量子点/氧掺杂多孔氮化碳/氧化石墨烯三元气凝胶光催化剂</a> <b>[P]</b> . <span> 中国专利： CN110433849B </span> <span> . 2020.10.27</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120101250084.html">一种氧化石墨烯量子点/氧掺杂多孔氮化碳/氧化石墨烯三元气凝胶光催化剂</a> <b>[P]</b> . <span> 中国专利： CN110433849A </span> <span> . 2019-11-12</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130400933487.html">PREPARATION METHOD FOR PREPARING A CATALYST BASED ON IRON NANOPARTICLES, COBALT NANOPARTICLES OR ALLOYS THEREOF, THE CATALYST THUS PREPARED AND USE OF THE CATALYST FOR THE SELECTIVE HYDROGENATION OF CARBON DIOXIDE TO ISOBUTANE</a> <b>[P]</b> . 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