Surface structure of cobalt, palladium, and mixed oxide‐based catalysts and their activity in methane combustion studied by means of micro‐ <fc xmlns='http://www.wiley.com/namespaces/wiley'>R</fc>R aman spectroscopy

Chlebda Damian K.; J?drzejczyk Roman J.; Jod?owski Przemys?aw J.; ?ojewska Joanna

摘要

Abstract > This paper reports the results of the study of surface properties and catalytic activity of cobalt, palladium, and mixed oxide catalysts supported on alumina. Catalytic materials were prepared by the wetness impregnation method directly from solutions of metal salts and using the ultrasound irradiation. The material surface was investigated by micro‐Raman spectroscopy, and the activity in methane combustion was monitored. The results indicated the presence of different metal oxides on the catalysts' surfaces. Cobalt spinel Co <sub>3</sub> O <sub>4</sub> was the main phase of the cobalt catalysts as well as species resulted from interactions with alumina support. In the case of palladium catalysts, the PdO was most prevalent. The article also discusses the observed variation in band position in the Raman spectra and compares the band assignment with literature data. The palladium and mixed oxide catalysts showed average conversion higher than 50% for methane combustion at 673.15?K (400?°C) especially those after sonication. </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 xmlns =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <title type =“main”>抽象</ title> >本文举报研究钴，钯和混合氧化物催化剂的表面性质和催化活性研究结果。通过湿润浸渍方法直接由金属盐的溶液和使用超声辐射制备催化材料。通过微拉曼光谱研究材料表面，监测甲烷燃烧中的活性。结果表明催化剂表面上存在不同的金属氧化物。钴尖晶石Co <sub> 3 </ sub> O <sub> 4 </ sub>是钴催化剂的主阶段以及由与氧化铝载体相互作用引起的物种。在钯催化剂的情况下，PDO最普遍。该文章还讨论了拉曼光谱中的频带位置的观察到的变化，并将频带分配与文献数据进行比较。钯和混合氧化物催化剂显示在673.15℃的甲烷燃烧中的平均转化率高于50％，特别是在超声处理之后的甲烷燃烧。 </ p> </ abstract> </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-35645/'>《Journal of Raman Spectroscopy: An International Journal for Original Work in All Aspects of Raman Spectroscopy, Including Higher Order Processes, and Also Brillouin- and Rayleigh Scattering》</a> <b style="margin: 0 2px;">|</b><span>2017年第12期</span><b style="margin: 0 2px;">|</b><span>共10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=Chlebda Damian K.&option=202" target="_blank" rel="nofollow">Chlebda Damian K.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=J?drzejczyk Roman J.&option=202" target="_blank" rel="nofollow">J?drzejczyk Roman J.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Jod?owski Przemys?aw J.&option=202" target="_blank" rel="nofollow">Jod?owski Przemys?aw J.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=?ojewska Joanna&option=202" target="_blank" rel="nofollow">?ojewska Joanna;</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>Faculty of ChemistryJagiellonian UniversityKraków Poland;</p> <p>Malopolska Centre of BiotechnologyJagiellonian UniversityKraków Poland;</p> <p>Faculty of Chemical Engineering and TechnologyCracow University of TechnologyKraków Poland;</p> <p>Faculty of ChemistryJagiellonian UniversityKraków Poland;</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/4724.html" title="光谱学">光谱学;</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=cobalt oxide&option=203" rel="nofollow">cobalt oxide;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=in situ micro‐Raman&option=203" rel="nofollow">in situ micro‐Raman;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=methane combustion&option=203" rel="nofollow">methane combustion;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=palladium oxide&option=203" rel="nofollow">palladium oxide;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=structure&option=203" rel="nofollow">structure;</a> </p> <div class="translation"> 机译：氧化钴;原位微拉曼;甲烷燃烧;氧化钯;结构; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul id="referenceul"></ul> <ul id="citationul"></ul> <ul id="commonreferenceul"></ul> <ul id="commoncitationul"></ul> <ul id="tworeferenceul"></ul> <ul id="twocitationul"></ul> </div> </div> </div> <div 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Surface structure of cobalt, palladium, and mixed oxide‐based catalysts and their activity in methane combustion studied by means of micro‐ RR aman spectroscopy

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