典型文献
Graphene/carbon structured catalyst layer to enhance the performance and durability of the high-temperature proton exchange membrane fuel cells
文献摘要:
In this study,nitrogen doped electrochemically exfoliated reduced graphene oxide and carbon black sup-ported platinum(Pt/NrEGO2-CB3)has been prepared to enhance the performance and durability of high-temperature PEMFCs with lower Pt loading.On the one hand,Pt/NrEGO2-CB3 with the strong interaction between the Pt and nitrogen(N)prevent agglomeration of Pt particles and Pt particles is 5.46±1.46 nm,which is smaller than that of 6.78+1.34 nm in Pt/C.Meanwhile,ECSA of Pt/NrEGO2-CB3 decrease 13.65%after AST,which is much lower than that of 97.99%in Pt/C.On the other hand,the NrEGO flakes in MEAac act as a barrier to mitigate phosphoric acid redistribution,which improves the formation of triple-phase boundaries(TPBs)and gives stable operation of the MEAac with a lower decay rate of 0.02 mV h-1 within 100 h.After steady-state operation,the maximum power density of Pt/NrEGO2-CB3(0.411 W cm-2)is three times higher than that of conventional Pt/C(0.134 W cm-2)in high-temperature PEMFCs.After AST,the mass transfer resistance of Pt/NrEGO2-CB3 electrode(0.560 Q cm2)is lower than that in Pt/C(0.728 Q cm2).
文献关键词:
中图分类号:
作者姓名:
Zhaoqi Ji;Jianuo Chen;Zunmin Guo;Ziyu Zhao;Rongsheng Cai;Maxwell T.P.Rigby;Sarah J.Haigh;Maria Perez-Page;Yitao Shen;Stuart M.Holmes
作者机构:
School of Automotive Engineering,Harbin Institute of Technology(Weihai),Weihai 264209,Shandong,China;Department of Chemical Engineering,The University of Manchester,Manchester M13 9PL,UK;Department of Materials,The University of Manchester,Manchester M13 9PL,UK
文献出处:
引用格式:
[1]Zhaoqi Ji;Jianuo Chen;Zunmin Guo;Ziyu Zhao;Rongsheng Cai;Maxwell T.P.Rigby;Sarah J.Haigh;Maria Perez-Page;Yitao Shen;Stuart M.Holmes-.Graphene/carbon structured catalyst layer to enhance the performance and durability of the high-temperature proton exchange membrane fuel cells)[J].能源化学,2022(12):399-407
A类:
NrEGO2,CB3,78+1,NrEGO,MEAac,TPBs
B类:
Graphene,carbon,structured,catalyst,layer,enhance,performance,durability,temperature,proton,exchange,membrane,fuel,cells,In,this,study,nitrogen,doped,electrochemically,exfoliated,reduced,graphene,oxide,black,sup,ported,platinum,Pt,been,prepared,PEMFCs,lower,loading,On,one,hand,strong,interaction,between,prevent,agglomeration,particles,which,smaller,than,that,Meanwhile,ECSA,decrease,after,AST,much,other,flakes,barrier,mitigate,phosphoric,acid,redistribution,improves,formation,triple,phase,boundaries,gives,stable,operation,decay,rate,mV,within,After,steady,state,maximum,power,density,three,times,higher,conventional,mass,transfer,resistance,electrode
AB值:
0.478552
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