Understanding the Role of Gallium as a Promoter of Magnesium Silicate Catalysts for the Conversion of Ethanol into Butadiene

摘要

Abstract > In this study we explore the use of Ga as a new component in MgO‐SiO <sub>2</sub> catalysts for the Lebedev reaction (the one‐pot conversion of ethanol to butadiene). Several characterisation techniques (XRD, temperature‐programmed desorption of NH <sub>3</sub> , BET measurements, IR spectroscopy) and in?situ spectroscopic studies (DRIFTS‐MS) were performed with the aim to correlate the properties of the modified materials with the catalytic results. We concluded that the wet impregnation of Ga 3+ on the MgO‐SiO <sub>2</sub> catalyst creates new Ga?O(H)?Si sites. These sites interact strongly with alcohol and not only facilitate its dehydrogenation to acetaldehyde and its transformation into the intermediate crotyl alcohol but also enhance the dehydration of the latter because of an improved acidity. However, an appropriate amount of gallium oxide is needed to avoid excessive acidity, which is conducive to an increased selectivity to ethylene. </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> > 在这项研究中，我们探索了GA作为MgO-SIO中的新组件 <sub> 2 </ sub> Lebedev反应的催化剂（乙醇对丁二烯的单罐转化）。几种表征技术（XRD，NH的温度编程解吸 <sub> 3 </ sub> 采用BET测量，IR光谱学）和在α原位光谱研究（漂移-Sms），其目的是将改性材料的性质与催化结果相关联。我们得出结论，GA的湿浸渍 3 + </ sup> 在MgO-SiO上 <sub> 2 </ sub> 催化剂造成新的GA？O（H）？SI位点。这些位点用醇强烈相互作用，不仅促进其对乙醛的脱氢，并且其转化为其进入中间芹菜醇，而且由于改善的酸度，还增强了后者的脱水。然而，需要适量的氧化镓以避免过量的酸度，这有利于对乙烯的选择性增加。 </ 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=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=gallium&option=203" rel="nofollow">gallium;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ir spectroscopy&option=203" rel="nofollow">ir spectroscopy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=magnesium&option=203" rel="nofollow">magnesium;</a> </p> <div class="translation"> 机译：酸度;醇;镓;红外光谱;镁; </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/0704022057450.html">Understanding the Role of Gallium as a Promoter of Magnesium Silicate Catalysts for the Conversion of Ethanol into Butadiene</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 href="/journal-foreign-16041/" target="_blank" rel="nofollow" class="tuijian_authcolor">ChemCatChem .</a> <span>2017</span> <span>,第12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：理解镓作为硅酸镁催化剂的启动子的作用，用于将乙醇转化为丁二烯的硅酸镁催化剂</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/070402675327.html">Role of Magnesium Silicates in Wet-Kneaded Silica-Magnesia Catalysts for the Lebedev Ethanol-to-Butadiene Process (vol 6, pg 4034, 2016)</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chung Sang-Ho&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Chung Sang-Ho,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Angelici Carlo&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Angelici Carlo,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Hinterding Stijn O. M.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Hinterding Stijn O. M.,</a> <a href="/journal-foreign-18795/" target="_blank" rel="nofollow" class="tuijian_authcolor">ACS catalysis .</a> <span>2016</span> <span>,第11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：硅酸镁在Lebedev乙醇制丁二烯工艺的湿捏法二氧化硅-氧化镁催化剂中的作用（第6卷，第4034页，2016年）</span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022094812.html">From Sugars to Wheels: The Conversion of Ethanol to 1,3-Butadiene over Metal-Promoted Magnesia-Silicate Catalysts</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Shylesh Sankaranarayanapillai&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Shylesh Sankaranarayanapillai,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gokhale Amit A.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Gokhale Amit A.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Scown Corinne D.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Scown Corinne D.,</a> <a href="/journal-foreign-16185/" target="_blank" rel="nofollow" class="tuijian_authcolor">ChemSusChem .</a> <span>2016</span> <span>,第12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：从糖到车轮：将乙醇转化为1,3-丁二烯的金属促进的氧硅酸盐催化剂</span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-conference-foreign_meeting-273145_thesis/0705015150152.html">EFFECTS OF PROMOTERS OVER MESOPOROUS PDCL2-CUCL2/HMS CATALYSTS FOR OXIDATIVE CARBONYLATION OF ETHANOL TO DIETHYL CARBONATE</a> <b>[C]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Pingbo Zhang&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Pingbo Zhang,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yang Yang&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Yang Yang,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Shuang Chen&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Shuang Chen </a> <a href="/conference-foreign-273145/" target="_blank" rel="nofollow" class="tuijian_authcolor">ACS National Meeting Exposition .</a> <span>2008</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：促进剂对中孔PdCl2-CUCl2 / HMS催化剂的影响乙醇氧化羰基化碳酸二乙酯</span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-degree-foreign_mphd_thesis/02061272599.html">Effect of promoter loading for supported silver catalysts used for the epoxidation of 1,3-butadiene with dioxygen.</a> <b>[D] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Mueller, Gregory M.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Mueller, Gregory M. </a> <span>2004</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：助催化剂负载量对用于1,3-丁二烯与双氧环氧化的负载型银催化剂的影响。</span> </p> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-journal-foreign-pmc_detail_thesis/040007075521.html">Bimetallic Ni–Ru and Ni–Re Catalysts for Dry Reforming of Methane: Understanding the Synergies of the Selected Promoters</a> <b>[O] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Andrea Álvarez Moreno&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Andrea Álvarez Moreno,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tomás Ramirez-Reina&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Tomás Ramirez-Reina,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Svetlana Ivanova&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Svetlana Ivanova,</a> <span>2021</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：Bimetallic Ni-Ru和Ni-Re甲烷干重整催化剂：了解所选启动子的协同作用</span> </p> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/open-access_resources_thesis/01000124921512.html">Correction to Role of Magnesium Silicates in Wet-Kneaded Silica-Magnesia Catalysts for the Lebedev Ethanol-to-Butadiene Process</a> <b>[O] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sang-Ho Chung&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Sang-Ho Chung,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Carlo Angelici&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Carlo Angelici,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Stijn O.M. Hinterding&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Stijn O.M. Hinterding,</a> <span>2016</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：校正镁硅胶在湿捏合二氧化硅镁催化剂中的作用，用于Lebedev乙醇 - 丁二烯工艺</span> </p> </li> <li> <div> <b>8. </b><a class="enjiyixqcontent" href="/ntis-science-report_ad_thesis/020711844905.html">A New Class of Models to Explain the Role of Promoters in Hydrodesulfurization Catalysts.</a> <b>[R] </b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=phillips,roger w. fote,alfred a.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">phillips,roger w. fote,alfred a. </a> <span>1975</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：一类新的模型来解释促进剂在加氢脱硫催化剂中的作用。</span> </p> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/academic-journal-cn_natural-gas-chemistry_thesis/0201267310129.html">镓—硅酸盐复合催化剂催化甲烷转化制芳族化合物</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=InuiT&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . InuiT</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=钟琳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,钟琳</a> <span> <a href="/journal-cn-51159/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 天然气化学 </a> </span> <span> . 1991</span><span> ,第001期</span> </span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/academic-journal-cn_petrochemical-translation-bundle_thesis/0201262967328.html">采用镓—硅酸盐催化剂由甲醇选择合成芳烃</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Matsu.H&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . Matsu.H</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李懋英&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李懋英</a> <span> <a href="/journal-cn-42502/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 石油化工译丛 </a> </span> <span> . 1989</span><span> ,第006期</span> </span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/academic-journal-cn_ceramics_thesis/0201295237628.html">钙镁硅酸盐系列结晶釉的研究——SiO_2含量变化对钙的偏硅酸盐矿物种属的影响</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=俞平利&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 俞平利</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘培德&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,刘培德</a> <span> <a href="/journal-cn-9630/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 陶瓷 </a> </span> <span> . 2001</span><span> ,第6期</span> </span> </div> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/academic-journal-cn_detail_thesis/0201295589014.html">钠钙铝镁硅酸盐玻璃和碱铅硅酸盐玻璃的风化</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王承遇&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 王承遇</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=陶瑛&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,陶瑛</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=陈敏&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,陈敏</a> <span> <a href="/journal-cn-57119/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 硅酸盐通报 </a> </span> <span> . 1989</span><span> ,第6期</span> </span> </div> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-journal-cn_journal-building-materials_thesis/0201291790672.html">不同镁硅摩尔比下水化硅酸镁凝胶的微观结构</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=肖建敏&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 肖建敏</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=胡亚茹&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,胡亚茹</a> <span> <a href="/journal-cn-9593/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 建筑材料学报 </a> </span> <span> . 2021</span><span> ,第006期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-6799_thesis/020221757635.html">黑曲霉诱导下富镁硅酸盐矿物的溶解和草酸镁石的矿化研究</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=蔡林&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 蔡林</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李涵&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李涵</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=周根陶&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,周根陶</a> <span> <a href="/conference-cn-6799/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 2012年全国矿物科学与工程学术会议 </a> <span> <span> . 2012</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020313826058.html">Al-δ层状二硅酸钠晶体结构稳定性及α、β相层状二硅酸钠钙镁脱除机理的研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李丽萍&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 李丽萍</a> <span> . 2007</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120104498483.html">离子交换过的硅酸铝－镁或氟化硅酸镁气凝胶及由其制备的催化剂载体</a> <b>[P]</b> . <span> 中国专利： CN1295496A </span> <span> . 2001-05-16</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120113090587.html">一种利用球磨法制备多孔硅酸镁的方法及制得的硅酸镁</a> <b>[P]</b> . <span> 中国专利： CN113120914A </span> <span> . 2021-07-16</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130414792740.html">METAL DOPED SILICATE CATALYSTS FOR THE SELECTIVE CONVERSION OF ETHANOL TO BUTADIENE</a> <b>[P]</b> . <span> 外国专利：  WO2014199348A3 </span> <span> . 2015-06-25</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：金属掺杂硅酸盐催化剂，用于乙醇选择性转化为丁二烯 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130414792741.html">METAL DOPED SILICATE CATALYSTS FOR THE SELECTIVE CONVERSION OF ETHANOL TO BUTADIENE</a> <b>[P]</b> . <span> 外国专利：  WO2014199348A2 </span> <span> . 2014-12-18</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：金属掺杂硅酸盐催化剂，用于乙醇选择性转化为丁二烯 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130414792738.html">METAL IMPREGNATED AMORPHOUS SILICATES FOR THE SELECTIVE CONVERSION OF ETHANOL TO BUTADIENE</a> <b>[P]</b> . <span> 外国专利：  WO2014199349A3 </span> <span> . 2015-07-02</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：金属浸渍的非晶硅酸盐，用于将乙醇选择性转化为丁二烯 </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" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704022057450','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div class="journal-sub"> <h2>期刊订阅</h2> <img src="https://cdn.zhangqiaokeyan.com/img/loginclose.png" alt="关闭" onclick="$('.journalsub-pop-up').hide()"> <p class="pardon">抱歉，该期刊暂不可订阅，敬请期待！</p> <p class="current">目前支持订阅全部北京大学中文核心（2020）期刊目录。</p> <div style="display: flex;margin-top: 69px;justify-content: space-between;"> <div class="no-sub" onclick="$('.journalsub-pop-up').hide()">暂不订阅</div> <div class="other-sub" onclick="continueSub('from=pc-detail')">继续订阅其他期刊</div> </div> </div> </div> <div class="right_btn"> <ul> <li class="gouwuche">  </li> <li class="yijian"> <a href="javascript:void(0);" onclick="link_analysis('/mycenter/auth/complaint.html',this)" title="意见反馈">意见反馈</a> </li> <li class="top"> <a href="javascript:scrollTo(0,0);" title="回到顶部">回到顶部</a> </li> <li class="shouye"> <a href="/" title="首页">回到首页</a> </li> </ul> </div> <div class="xllindexfooter"> <div class="xllindexfootercenter"> <div class="xllindexfooterleft left" > <div class="xllindexfooterleftli"> <ul> <li><a href="/about.html" title="关于掌桥">关于掌桥</a></li> <li><a href="/help/helpmap.html" title="资源导航">资源导航</a></li> <li><a href="/help/helpguide.html" title="新手指南">新手指南</a></li> <li><a href="/help/helpcenter.html" title="常见问题">常见问题</a></li> <li><a href="/sitemap.html" title="网站地图">网站地图</a></li> <li><a href="/help/helpcenter.html?type=9" title="版权声明">版权声明</a></li> </ul> </div> <div class="xllindexfooterleft"> <p class="xllindexfooterlefteamil">客服邮箱：kefu@zhangqiaokeyan.com</p> <div class="xllindexfooterlefttcp"> <div class="xllindexfooterpoliceiimg"></div> <div class="xllindexfooterpoliceispan"> <span>京公网安备：11010802029741号 </span> <span>ICP备案号：<a href="https://beian.miit.gov.cn" rel="nofollow" target="_blank" title="ICP备案号">京ICP备15016152号-6</a></span> <span>六维联合信息科技 (北京) 有限公司©版权所有</span> </div> </div> </div> </div> <div class="xllindexfooterright left"> <ul> <li> <p style="font-weight: bold;">客服微信</p> <div></div> </li> <li> <p style="font-weight: bold;">服务号</p> <div></div> </li> </ul> </div> </div> </div> <span id="0704022057450down" data-source="7," data-out-id="k6zzUUuLgR7H+Am6znemQF+9qCp0Uu7RtehzNOSCKUbnW5N71p0pWuO2LWxORyo6," data-f-source-id="7" data-title="Understanding the Role of Gallium as a Promoter of Magnesium Silicate Catalysts for the Conversion of Ethanol into Butadiene" data-price="20" data-site-name="" data-transnum="24" style="display:none;"></span> <input type="hidden" value="4" id="sourcetype"> <input type="hidden" value="16041" id="journalid"> <input type="hidden" value="1" id="inyn_provide_service_level"> <input type="hidden" value="https://cdn.zhangqiaokeyan.com" id="imgcdn"> <input type="hidden" value="1" id="isdeatail"> <input type="hidden" value="" id="syyn_indexed_database"> <input type="hidden" value="" id="servicetype"> <input type="hidden" id="pagename" value="Understanding the Role of Gallium as a Promoter of Magnesium Silicate Catalysts for the Conversion of Ethanol into Butadiene"/> <input type="hidden" value="thesis_get_original" id="pageIdentification"> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/jquery-1.12.4.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/lwlh_ajax.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/zq.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/common.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/jquery.cookie.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/top.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/tip.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/login.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/down.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/search.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/newmail.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/searchtype.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/user/regist.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/zxs_solor/detail.js?v=5.7.9"></script> <script type="text/javascript" src="https://www.zhangqiaokeyan.com/statistics/static/pagecollection.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/tj.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/sse.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/pushbaidu.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/common/history.js"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/util/cookie.js?v=5.7.9"></script> <script type="text/javascript" src="https://cdn.zhangqiaokeyan.com/js/weipu/weipu.js?v=5.7.9"></script> </body> <script> function kefu(customization) { var from = GetQueryString("from"); if (from == null || from == "") { from = "other"; } var url = getWxWorkQrCode(55, from, customization); if (url == "" || typeof url == 'undefined') { url = "https://wework.qpic.cn/wwpic/994838_0LUTS-VqR0quT1N_1675665967/0"; } tipDocGuidance(url, '人工辅助获取外文期刊材料'); } $(function () { var weiPuStatus = getCookie('WeiPuStatus'); if (weiPuStatus) { tipWeiPuStatus(weiPuStatus); delCookie('WeiPuStatus'); } getFacetKeywordVoInId(); var sourcetype = $("#sourcetype").val(); var inyn_provide_service_level = $("#inyn_provide_service_level").val(); if ((sourcetype == 1 || sourcetype == 4) && inyn_provide_service_level != 4) { getJournal(); } }) </script> </html>