典型文献
Suppressing byproduct formation for high selective CO2 reduction over optimized Ni/TiO2 based catalysts
文献摘要：
One of the challenges for catalytic CO2 reduction is to control product selectivity,and new findings that can modify selectivity would be transformative.Herein,two kinds of TiO2(homemade and commercial)with the same crystal phase but different surface properties are chosen as supports to prepare Ni-based catalysts for CO2 reduction,which show distinctly different product selectivity for CO2 reduction to CH4 or CO,as well as the CO2 conversion.The catalysts based on the homemade TiO2 support are highly selec-tive for CH4 formation,while the latter ones are about 100％selective for CO formation under the same reaction conditions.In addition,the former ones are much active(more than 3 times)than the latter ones.We found that the collaborative contribution of Ti3+and Ni2+species and the electronic metal-support interactions effect maybe the main driving force behind for determining the product selectivity.Methane is almost exclusively produced over the catalysts with abundant Ti3+and Ni2+species and greater electronic metal-support interaction,otherwise,it will give priority to CO generation.The addi-tion of CeO2 can reduce the Ni particle size and improve the dispersion of Ni nanoparticles,as well as cre-ate more Ti3+species,contributing to the enhancement of CO2 conversion,but shows a negligible effect on product selectivity.Furthermore,the in situ DRIFT experiments and kinetic experiments indicate that the CO route is probably involved in the CO2 reduction process over the homemade Ni-CeO2/TiO2-CO cat-alyst with abundant Ti3+and Ni2+species and a strong electronic transform effect.
文献关键词：
中图分类号：
作者姓名：
Danyang Li;Ruidong Xu;Roong Jien Wong;Xing Zhu;Dong Tian;Lei Jiang;Qingjie Guo;Hongcun Bai;Linan Huang;Wen Liu;Hua Wang;Kongzhai Li
作者机构：
Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction,Ministry of Education,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;School of Chemical and Biomedical Engineering,Nanyang Technological University,Singapore 637459,Singapore;State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering,Ningxia University,Yinchuan 750021,Ningxia,China
文献出处：
引用格式：
[1]Danyang Li;Ruidong Xu;Roong Jien Wong;Xing Zhu;Dong Tian;Lei Jiang;Qingjie Guo;Hongcun Bai;Linan Huang;Wen Liu;Hua Wang;Kongzhai Li-.Suppressing byproduct formation for high selective CO2 reduction over optimized Ni/TiO2 based catalysts)[J].能源化学,2022(09):465-478
A类：
Ti3+and,Ni2+species,Ti3+species
B类：
Suppressing,byproduct,formation,selective,reduction,over,optimized,TiO2,catalysts,One,challenges,catalytic,control,selectivity,new,findings,that,can,modify,would,transformative,Herein,two,kinds,homemade,commercial,same,crystal,phase,different,surface,properties,chosen,supports,prepare,which,distinctly,CH4,well,conversion,highly,while,latter,ones,about,under,reaction,conditions,In,addition,former,much,active,times,We,found,collaborative,contribution,electronic,metal,interactions,effect,maybe,main,driving,force,behind,determining,Methane,almost,exclusively,produced,abundant,greater,otherwise,will,give,priority,generation,CeO2,reduce,size,improve,dispersion,nanoparticles,cre,contributing,enhancement,shows,negligible,Furthermore,situ,DRIFT,experiments,kinetic,indicate,route,probably,involved,process,strong
AB值：
0.447791
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