典型文献
Atomically dispersed Ir/α-MoC catalyst with high metal loading and thermal stability for water-promoted hydrogenation reaction
文献摘要：
Synthesis of atomically dispersed catalysts with high metal loading and thermal stability is challenging but particularly valuable for industrial application in heterogeneous catalysis.Here,we report a facile synthesis of a thermally stable atomically dispersed Ir/α-MoC catalyst with metal loading as high as 4 wt％,an unusually high value for carbide supported metal catalysts.The strong interaction between Ir and the α-MoC substrate enables high dispersion of Ir on the α-MoC surface,and modulates the electronic structure of the supported Ir species.Using quinoline hydrogenation as a model reaction,we demonstrate that this atomically dispersed Ir/α-MoC catalyst exhibits remarkable reactivity,selectivity and stability,for which the presence of high-density isolated Ir atoms is the key to achieving high metal-normalized activity and mass-specific activity.We also show that the water-promoted quinoline hydrogenation mechanism is preferred over the Ir/α-MoC,and contributes to high selectivity towards 1,2,3,4-tetrahydroquinoline.The present work demonstrates a new strategy in constructing a high-loading atomically dispersed catalyst for the hydrogenation reaction.
文献关键词：
中图分类号：
作者姓名：
Siwei Li;Ruochen Cao;Mingquan Xu;Yuchen Deng;Lili Lin;Siyu Yao;Xuan Liang;Mi Peng;Zirui Gao;Yuzhen Ge;Jin-Xun Liu;Wei-Xue Li;Wu Zhou;Ding Ma
作者机构：
Beijing National Laboratory for Molecular Sciences,College of Chemistry and Molecular Engineering and College of Engineering,and BIC-ESAT,Peking University,Beijing 100871,China;School of Physical Sciences and CAS Key Laboratory of Vacuum Physics,University of Chinese Academy of Sciences,Beijing 100049,China;School of Chemistry and Materials Science,CAS Excellence Center for Nanoscience,Hefei National Laboratory for Physical Sciences at the Microscale,iChEM,University of Science and Technology of China,Hefei 230026,China;CAS Center for Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Siwei Li;Ruochen Cao;Mingquan Xu;Yuchen Deng;Lili Lin;Siyu Yao;Xuan Liang;Mi Peng;Zirui Gao;Yuzhen Ge;Jin-Xun Liu;Wei-Xue Li;Wu Zhou;Ding Ma-.Atomically dispersed Ir/α-MoC catalyst with high metal loading and thermal stability for water-promoted hydrogenation reaction)[J].国家科学评论（英文版）,2022(01):113-122
A类：
tetrahydroquinoline
B类：
Atomically,dispersed,Ir,MoC,high,metal,loading,stability,water,promoted,hydrogenation,reaction,Synthesis,atomically,catalysts,challenging,particularly,valuable,industrial,application,heterogeneous,catalysis,Here,report,facile,synthesis,thermally,stable,wt,unusually,value,carbide,supported,strong,interaction,between,substrate,enables,dispersion,surface,modulates,electronic,structure,species,Using,model,that,this,exhibits,remarkable,reactivity,selectivity,which,presence,density,isolated,atoms,key,achieving,normalized,mass,specific,We,also,show,mechanism,preferred,over,contributes,towards,present,work,demonstrates,new,strategy,constructing
AB值：
0.457022
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