典型文献
Synthesis of Axially Coordinated Cobalt Porphyrin/graphene Oxide Nanocomposite for Enhanced Electrocatalytic CO2 Reduction to CO
文献摘要:
The electrocatalysts containing cobalt-pyrrolic nitrogen-carbon(Co-N4-C)moiety for CO2 reduction reaction(CO2RR)have caught much attention.However,the effects of Co valence state and its synergy with gra-phene substrate are not clear yet.In this work,cobalt porphyrin(CoTPP)molecule with the intrinsic Co-N4-C moiety is successfully combined with graphene oxide(GO)via three kinds of liquid-phase methods.The ratio of CoTPP to GO and the valence state of Co atom are studied to explore their catalysis for CO2RR to CO.It is found that axial-ly-coordinated Co(Ⅲ)TPPCl/GO nanocomposites synthesized via a chemical method exhibit better ability for CO2RR,as compared with Co(Ⅱ)TPP+GO and/or Co(Ⅲ)TPPCl+GO nanocomposites obtained via a physically mixing way.After optimizing the ratio of CoTPP to GO,the Faradaic efficiency(FE)is more than 90%for CO2RR to CO between-0.7 and-0.8 V vs.reversible hydrogen electrode(RHE)in Co(Ⅲ)TPPCl/GO75.The synergy be-tween CoTPP and GO and the effect of Co valence state are systematically investigated,indicating that their strong interaction plays the key role in electrocatalytic CO2RR.
文献关键词:
中图分类号:
作者姓名:
YOU Wei-Feng;XU Xiao;CAO Ai-Hui;TAO Zhi-Jie;KANG Long-Tian
作者机构:
Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences,Fuzhou 350002,China;Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China;University of Chinese Academy of Sciences,Chinese Academy of Sciences,Beijing 100049,China
文献出处:
引用格式:
[1]YOU Wei-Feng;XU Xiao;CAO Ai-Hui;TAO Zhi-Jie;KANG Long-Tian-.Synthesis of Axially Coordinated Cobalt Porphyrin/graphene Oxide Nanocomposite for Enhanced Electrocatalytic CO2 Reduction to CO)[J].结构化学,2022(03):1-11
A类:
TPPCl,TPP+GO,TPPCl+GO,GO75
B类:
Synthesis,Axially,Coordinated,Cobalt,Porphyrin,graphene,Oxide,Nanocomposite,Enhanced,Electrocatalytic,Reduction,electrocatalysts,containing,cobalt,pyrrolic,nitrogen,carbon,N4,moiety,reduction,reaction,CO2RR,have,caught,much,attention,However,effects,valence,state,its,synergy,substrate,not,clear,yet,In,this,work,porphyrin,CoTPP,molecule,intrinsic,successfully,combined,oxide,via,three,kinds,liquid,phase,methods,ratio,atom,studied,explore,their,catalysis,It,found,that,axial,coordinated,nanocomposites,synthesized,chemical,exhibit,better,ability,compared,obtained,physically,mixing,way,After,optimizing,Faradaic,efficiency,FE,more,than,between,reversible,hydrogen,electrode,RHE,systematically,investigated,indicating,strong,interaction,plays,key,role,electrocatalytic
AB值:
0.552208
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