Oxidant‐free Dehydrogenation of Glycerol to Lactic Acid by Heterogeneous Platinum Catalysts

摘要

Abstract >Among various supported metal nanoparticle catalysts, Pt‐loaded carbon (Pt/C) catalysts, including a commercial one, showed the highest yield for selective dehydrogenation of glycerol to lactic acid under oxidant‐free, solvent‐free, and alkaline conditions. For the reaction with Pt/C, the effects of conditions (type of basic additives, the amount of water, atmosphere, reactor) on the catalytic activity and selectivity were studied. Combined with a reaction pathway in the literature and our result of control reactions, we proposed a strategy for decreasing the selectivity of byproducts. The optimized conditions gave a high turnover number of 69?000. To clarify the structural factors affecting the catalytic activity, we show the effect of electronic states of various transition metals on the activity as well as the effect of Pt particle size on the turnover frequency per surface Pt atom. </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> 在各种负载的金属纳米颗粒催化剂中，Pt负载的碳（Pt / C）催化剂，包括商业一体，在无氧化剂，无溶剂和碱性条件下，甘油在乳酸中选择性脱氢的最高产率。对于与Pt / c的反应，研究了条件（碱性添加剂类型，水，大气量，反应器）对催化活性和选择性的影响。结合文献中的反应途径和我们的控制反应结果，我们提出了一种降低副产物选择性的策略。优化的条件给出了69 000的高位数。为了阐明影响催化活性的结构因素，我们展示了各种过渡金属的电子状态对活动的影响以及Pt粒径对每个表面Pt原子的转换频率的影响。</ 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14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=alcohols&option=203" rel="nofollow">alcohols;</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=carboxylic acids&option=203" rel="nofollow">carboxylic acids;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=dehydrogenation&option=203" rel="nofollow">dehydrogenation;</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> </p> <div class="translation"> 机译：醇;生物质;羧酸;脱氢;铂; 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href="/patent-detail/06120104991783.html">来自 C a n d i d a A l bi c a n s的甘油－3－磷酸磷酸酶和甘油－3－磷酸脱氢酶 ,编码它们的基因, 包含该基因的载体和宿主细胞, 和使用该宿主细胞生产甘油的方法</a> <b>[P]</b> . <span> 中国专利： CN1798835A </span> <span> . 2006-07-05</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130404550025.html">Highly robust efficient catalyst for selective dehydrogenation of neat glycerol to lactic acid</a> <b>[P]</b> . <span> 外国专利：  US10202327B2 </span> <span> . 2019-02-12</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：用于将纯甘油选择性脱氢为乳酸的高效催化剂 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130410049156.html">Highly Robust Efficient Catalyst For Selective Dehydrogenation Of Neat Glycerol To Lactic Acid</a> <b>[P]</b> . <span> 外国专利：  US2017217870A1 </span> <span> . 2017-08-03</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：用于将甘油甘油选择性脱氢为乳酸的高效催化剂 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130443694654.html">Production of cyclobutanone, useful as a pharmaceutical intermediate, comprises isomerization of cyclopropylmethanol to cyclobutanol in the presence of an acidic heterogeneous catalyst, and dehydrogenation at a heterogeneous catalyst</a> <b>[P]</b> . <span> 外国专利：  DE10162456A1 </span> <span> . 2003-07-03</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：用作药物中间体的环丁酮的生产包括在酸性非均相催化剂存在下将环丙基甲醇异构化为环丁醇，并在非均相催化剂上脱氢 </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"> 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