典型文献
Two-dimensional PtPb-PbS heterostructure enables improved kinetics and highlighted bifunctional antipoisoning for methanol electrooxidation
文献摘要：
Two-dimensional(2D)platinum(Pt)-based nanomaterials are considered as the ideal fuel cell catalysts,while their rational synthesis associated with phase control remains a formidable challenge.Herein,we firstly design the novel 2D Pt-lead-sulphur heterophased nanosheets(PtPbS HPNSs)as efficient high-toleration electrocatalysts for methanol oxidation reaction(MOR).They exhibit much higher activity and more highlighted bifunctional antipoisoning abilities than PtPb NSs and commercial Pt/C.Further density functional theory(DFT)simulation verifies that the decreased electron density of Pt sites worked by Pb and S makes CO intermediate favorable to desorb,avoiding the formation of CO*-polluted Pt sites.Simultaneously,this heterophased interface effectively weakens the adsorption of S2--species and improves the S-poisoning tolerance,showing a route to realize nearly innoxious catalysis.The present work highlights the importance of heterophase control in tuning antipoisoning property for 2D Pt-based nanomaterials,which is key for the rational design of efficient fuel cell anodic catalysts.
文献关键词：
中图分类号：
作者姓名：
Liangbin Liu;Chongyang Tang;Lingzheng Bu;Xiangheng Xiao;Xiaoqing Huang
作者机构：
State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China;School of Physics and Technology,Wuhan University,Wuhan 430072,China
文献出处：
引用格式：
[1]Liangbin Liu;Chongyang Tang;Lingzheng Bu;Xiangheng Xiao;Xiaoqing Huang-.Two-dimensional PtPb-PbS heterostructure enables improved kinetics and highlighted bifunctional antipoisoning for methanol electrooxidation)[J].中国科学:化学（英文版）,2022(06):1112-1121
A类：
PtPb,antipoisoning,heterophased,PtPbS,HPNSs,toleration,innoxious,heterophase
B类：
Two,dimensional,heterostructure,enables,improved,kinetics,highlighted,bifunctional,methanol,electrooxidation,2D,platinum,nanomaterials,are,considered,ideal,fuel,cell,while,their,rational,synthesis,associated,control,remains,formidable,challenge,Herein,firstly,design,novel,lead,sulphur,nanosheets,efficient,electrocatalysts,reaction,MOR,They,exhibit,much,higher,activity,more,abilities,commercial,Further,density,theory,DFT,simulation,verifies,that,decreased,electron,sites,worked,by,makes,intermediate,favorable,desorb,avoiding,formation,polluted,Simultaneously,this,interface,effectively,weakens,adsorption,S2,species,improves,tolerance,showing,route,realize,nearly,catalysis,present,highlights,importance,tuning,property,which,key,anodic
AB值：
0.546804
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