典型文献
Atom-by-atom fabrication of metal clusters for efficient selective hydrogenation
文献摘要：
Supported metal catalysts,in which the metal is usually fi-nely dispersed into nanoparticles(NPs)in size of a few nanometers on high-surface-area materials,are the work-horses in heterogeneous catalysis and have been extensively used in various key industrial processes[1].However,the surface heterogeneity arising from the uneven size distribu-tion as well as the lower atomic efficiency derived from the presence of unexposed interior atoms of metal NPs often leads to inferior activity/selectivity.On the other hand,the recently emerged single-atom catalysts(SACs),consisting of isolated metal atoms singly dispersed on supports,have at-tracted intensive attention due to their various advantages in comparison with NPs,including the maximized atomic ef-ficiency and relatively homogenous active sites[2,3].Nevertheless,the lack of cooperation from neighboring metal atoms may suppress the intrinsic activity of SACs in certain reactions.Therefore,the supported ultra-small clus-ters containing a few metal atoms that can provide catalytic sites with collective metal atoms and meanwhile maintain full atomic utilization efficiency,often being called as sup-ported atomically dispersed catalysts(SADCs)or fully ex-posed cluster catalysts(FECCs)[4],are regarded as the next generation of catalysts to bridge SACs and metal NPs.However,practically fabricating and stabilizing these clus-ters,especially with identical structure,remain a daunting challenge.
文献关键词：
中图分类号：
作者姓名：
Yalin Guo;Botao Qiao
作者机构：
CAS Key Laboratory of Science and Technology on Applied Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China;University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Yalin Guo;Botao Qiao-.Atom-by-atom fabrication of metal clusters for efficient selective hydrogenation)[J].中国科学:化学（英文版）,2022(02):202-203
A类：
nely,SADCs,FECCs
B类：
Atom,by,fabrication,metal,clusters,efficient,selective,hydrogenation,Supported,catalysts,which,usually,dispersed,into,nanoparticles,NPs,size,few,nanometers,high,surface,area,materials,work,horses,heterogeneous,catalysis,have,been,extensively,used,various,key,industrial,processes,However,heterogeneity,arising,from,uneven,distribu,as,well,lower,efficiency,derived,presence,unexposed,interior,atoms,often,leads,inferior,activity,selectivity,On,other,hand,recently,emerged,single,SACs,consisting,isolated,singly,supports,tracted,intensive,attention,due,their,advantages,comparison,including,maximized,relatively,homogenous,active,sites,Nevertheless,lack,cooperation,neighboring,may,suppress,intrinsic,certain,reactions,Therefore,supported,ultra,small,containing,that,can,provide,catalytic,collective,meanwhile,maintain,utilization,being,called,atomically,fully,regarded,next,generation,bridge,practically,fabricating,stabilizing,these,especially,identical,structure,remain,daunting,challenge
AB值：
0.575692
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