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典型文献
Roles of hydroxyl and oxygen vacancy of CeO2·xH2O in Pd-catalyzed ethanol electro-oxidation
文献摘要:
In the field of noble metal-catalyzed alcohol electro-oxidation reaction(AOR),huge attention is paid on the composition,size,facet,and structure of the metals,while the support engineering should also be emphasized.CeO2 has been widely used as a unique support in AOR,primarily due to its abundant oxygen vacancies(Ov).Herein,we report CeO2·xH2O nanoparticles with both massive hydroxyl groups(OH)and Ov remarkably enhance the catalytic activity and stability of Pd toward ethanol oxidation reaction(EOR).The CO striping experiments and density functional theory(DFT)calculations suggest that OH and Ov on CeO2·xH2O surface bring about a large downshift of Pd d-band center and a significant weakening of CO absorption on Pd.Moreover,OH and Ov also play synergic roles in the removal of toxic intermediates.Consequently,the important roles of OH and Ov of CeO2·xH2O are confirmed in Pd-catalyzed EOR.The facile CeO2·xH2O-enhanced strategy can contribute to the catalyst design for other energy conversion reactions.
文献关键词:
作者姓名:
Zhenyu Li;Jiefei Li;Zexuan Zheng;Kunhong Jiang;Tianrun Zheng;Dongmin Wang;Hang Wei;Zhiming Shi;Xiaotian Li;Haibin Chu
作者机构:
College of Chemistry and Chemical Engineering,Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules,Inner Mongolia University,Hohhot 010021,China;College of Materials Science and Engineering,Jilin University,Changchun 130022,China;College of Chemistry,Jilin University,Changchun 130012,China;State Key Laboratory of Luminescence and Applications,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China
引用格式:
[1]Zhenyu Li;Jiefei Li;Zexuan Zheng;Kunhong Jiang;Tianrun Zheng;Dongmin Wang;Hang Wei;Zhiming Shi;Xiaotian Li;Haibin Chu-.Roles of hydroxyl and oxygen vacancy of CeO2·xH2O in Pd-catalyzed ethanol electro-oxidation)[J].中国科学:化学(英文版),2022(05):877-884
A类:
B类:
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AB值:
0.590889
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