Facile Synthesis of Cu@CeO        <sub >2</sub>2        and Its Catalytic Behavior for the Hydrogenation of Methyl Acetate to Ethanol

摘要

Abstract > The hydrogenation of methyl acetate (MA) is one of the key steps in the synthesis of ethanol from syngas. Given previous studies in this area, synergy of the Cu 0 and Cu + species is the crux to improving catalytic performance. However, neither Cu 0 nor Cu + is easy to maintain under reaction conditions comprising abundant H <sub>2</sub> and high temperature. Here, a Cu@CeO <sub>2</sub> core–shell catalyst was fabricated by using a facile sol–gel method, and this catalyst exhibited excellent activity and stability in the hydrogenation of MA. It was revealed that the Cu@CeO <sub>2</sub> core–shell structure prevented the metallic copper particles from migrating and aggregating and also significantly increased the amount of Cu + species by enlarging the intimate contact area of copper and ceria. Furthermore, the Cu 0 and Cu + species were found to be well distributed on the interface between the Cu core and the CeO <sub>2</sub> shell. The close relative position of the two active sites is probably the main reason for the enhanced synergetic effect in the hydrogenation of MA. New insight into the core–shell structure–function relationship introduces new possibilities for the rational design of catalysts. </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> > 乙酸甲酯（MA）的氢化是合成合成气的乙醇的关键步骤之一。鉴于此领域的先前研究，Cu的协同作用 0 </ sup> 和铜 + </ sup> 物种是改善催化性能的症状。但是，既不是铜 0 </ sup> 也不是铜 + </ sup> 在包含丰富H的反应条件下易于维持 <sub> 2 </ sub> 和高温。在这里，一个CU @ CEO <sub> 2 </ sub> 通过使用容易溶胶 - 凝胶法制造核 - 壳催化剂，该催化剂在MA的氢化中表现出优异的活性和稳定性。据透露，CU @ CEO <sub> 2 </ sub> 核心壳结构防止金属铜颗粒迁移和聚集，并显着增加了Cu的量 + </ sup> 通过扩大铜和二氧化铈的私密接触面积的物种。此外，Cu 0 </ sup> 和铜 + </ sup> 发现物种在Cu核心和首席执行官之间的界面上很好地分布 <sub> 2 </ sub> 贝壳。两个活性位点的紧密相对位置可能是增强MA氢化中增强协同作用的主要原因。对核心壳结构功能关系的新洞察力为催化剂的合理设计引入了新的可能性。 </ 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12期</span><b style="margin: 0 2px;">|</b> <span>共6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=copper&option=203" rel="nofollow">copper;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=core–shell structures&option=203" rel="nofollow">core–shell structures;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ethanol&option=203" rel="nofollow">ethanol;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=heterogeneous catalysis&option=203" rel="nofollow">heterogeneous catalysis;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=hydrogenation&option=203" rel="nofollow">hydrogenation;</a> </p> <div class="translation"> 机译：铜;核心壳结构;乙醇;异质催化;氢化; </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/0704022059149.html">Inside Cover: Facile Synthesis of Cu@CeO <sub >2</sub>2 and Its Catalytic Behavior for the Hydrogenation of Methyl Acetate to Ethanol (ChemCatChem 12/2017)</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> </a> <a 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href="/conference-cn-34009/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第五届全国络合催化学术讨论会 </a> <span> <span> . 1997</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020315995881.html">锌掺杂的Cu/SiO2催化剂用于乙酸甲酯加氢制乙醇</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=袭雨杉&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 袭雨杉</a> <span> . 2019</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120113815444.html">一种催化合成乙酸甲酯的离子液体催化剂及其应用，以及催化合成乙酸甲酯的方法</a> <b>[P]</b> . <span> 中国专利： CN113813995A </span> <span> . 2021-12-21</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120109073723.html">草酸二甲酯加氢合成乙酸甲酯和乙醇的催化剂及制法和应用</a> <b>[P]</b> . <span> 中国专利： CN106563480A </span> <span> . 2017-04-19</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130449410870.html">Synthesis method of methyl acetate and methyl acetate and the acetic acid by the catalytic converter and the said catalytic converter for acetic acid synthesis</a> <b>[P]</b> . <span> 外国专利：  JP3143745B1 </span> <span> . 2001-03-07</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：催化转化器合成乙酸甲酯，乙酸甲酯和乙酸的方法及所述的乙酸合成催化剂 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130449410871.html">Methyl acetate and the catalytic converter for acetic acid synthesis, the production manner and methyl acetate and the acetic acid by the said catalytic converter synthesis method</a> <b>[P]</b> . <span> 外国专利：  JP3143744B1 </span> <span> . 2001-03-07</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：乙酸甲酯和乙酸合成的催化转化器，生产方法以及通过所述催化转化器合成方法的乙酸甲酯和乙酸 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130473743771.html">Catalytic process for the selective formation of ethanol and methyl acetate from methanol and synthesis gas</a> <b>[P]</b> . <span> 外国专利：  US4415749A </span> <span> . 1983-11-15</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：由甲醇和合成气选择性形成乙醇和乙酸甲酯的催化工艺 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" 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Facile Synthesis of Cu@CeO 22 and Its Catalytic Behavior for the Hydrogenation of Methyl Acetate to Ethanol

摘要

Facile Synthesis of Cu@CeO ₂2 and Its Catalytic Behavior for the Hydrogenation of Methyl Acetate to Ethanol