典型文献
Confined synthesis of MoS2 with rich co-doped edges for enhanced hydrogen evolution performance
文献摘要：
Activating MoS2 with atomic metal doping is promising to harvest desirable Pt-matched hydrogen evo-lution reaction(HER)catalytic performance.Herein,we developed an efficient method to access edge-rich lattice-distorted MoS2 for highly efficient HER via in-situ sulphuration of atomic Co/Mo species that were well-dispersed in a formamide-derived N-doped carbonaceous(f-NC)substrate.Apart from others,pre-embedding Co/Mo species in f-NC controls the release of metal sources upon annealing in S vapor,grafting the as-made MoS2 with merits of short-range crystallinity,distorted lattices,rich defects,and more edges exposed.The content of atomic Co species embedded in MoS2 reaches up to 2.85 at.％,and its atomic dispersion has been systematically confirmed by using XRD,HRTEM,XPS,and XAS character-izations.The Co-doped MoS2 sample exhibits excellent HER activity,achieving overpotentials of 67 and 155 mV at j=10 mA cm-2 in 1.0 M KOH and 0.5 M H2SO4,respectively.Density functional theory sim-ulations suggest that,compared with free-doping MoS2,the edged Co doping is responsible for the sig-nificantly improved HER activity.Our method,in addition to providing reliable Pt-matched HER catalysts,may also inspire the general synthesis of edge-rich metal-doped metal chalcogenide for a wide range of energy conversion applications.
文献关键词：
中图分类号：
作者姓名：
Zongge Li;Chenlei Li;Jianwen Chen;Xu Xing;Yaqun Wang;Ying Zhang;Miaosen Yang;Guoxin Zhang
作者机构：
Al-ion Battery Research Center,Department of Energy Storage Technology,Shandong University of Science and Technology,Qingdao 266590,Shandong,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum(East China),Qingdao 266580,Shandong,China;School of Chemical Engineering,Northeast Electric Power University,Jilin 132012,Jilin,China
文献出处：
引用格式：
[1]Zongge Li;Chenlei Li;Jianwen Chen;Xu Xing;Yaqun Wang;Ying Zhang;Miaosen Yang;Guoxin Zhang-.Confined synthesis of MoS2 with rich co-doped edges for enhanced hydrogen evolution performance)[J].能源化学,2022(07):18-26
A类：
sulphuration
B类：
Confined,synthesis,MoS2,rich,doped,edges,enhanced,hydrogen,evolution,performance,Activating,atomic,metal,doping,promising,harvest,desirable,Pt,matched,reaction,HER,catalytic,Herein,developed,efficient,method,access,distorted,highly,via,situ,species,that,were,well,dispersed,formamide,derived,carbonaceous,NC,substrate,Apart,from,others,pre,embedding,controls,release,sources,upon,annealing,vapor,grafting,made,merits,short,range,crystallinity,lattices,defects,more,exposed,content,embedded,reaches,dispersion,has,been,systematically,confirmed,by,using,HRTEM,XPS,XAS,character,izations,sample,exhibits,excellent,activity,achieving,overpotentials,mV,mA,KOH,H2SO4,respectively,Density,functional,theory,sim,ulations,suggest,compared,free,edged,responsible,sig,nificantly,improved,Our,addition,providing,reliable,catalysts,may,also,inspire,general,chalcogenide,wide,energy,conversion,applications
AB值：
0.609773
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