Preparation and characterization of PtNi-supported graphene DMFC cathode electrocatalyst - 文章详情页

作者：

Zhang, D.-T. (Zhang, D.-T..) (学者：张东涛) | Cheng, C. (Cheng, C..) | Wang, X.-Y. (Wang, X.-Y..) (学者：汪夏燕) | Xia, D.-G. (Xia, D.-G..) (学者：夏定国)

收录：

Scopus PKU CSCD

摘要：

Graphene　supported　PtNi　nanoparticles　as　DMFC　cathode　were　fabricated　by　one-step　approach　with　H2PtCl6　and　NiCl2　as　precursors　in　a　microfluidic　system　assisted　with　ultrasonic　irradiation,　and　characterized.　PtNi　nanoparticles　were　uniformly　dispersed　on　the　graphene　sheet　while　polyvinylpyrrolidone　(PVP)　was　used　as　capping　agent,　and　ultrasonic　irradiation　applied.　The　anchored　PtNi　nanoparticles　had　a　narrow　size　distribution　and　an　average　size　of　2.1　nm.　The　content　of　Pt　was　25.5%　(ω)　which　was　measured　by　ICP-AES.　The　mass　activity　at　0.7　V　(vs.,　NHE)　of　the　prepared　PtNi/graphene　electrocatalyst　was　107.6　mA/mg　which　was　2.8　times　higher　than　the　commercial　Pt/C　(-37.9　mA/mg),　which　indicated　good　electrocatalytic　activity　of　PtNi/graphene　toward　oxygen　reduction　reaction.

关键词：

Catalyst; Fuel cell; Microfluidic synthesis; Oxygen reduction; PtNi/graphene

作者机构：

[ 1 ] [Zhang, D.-T.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Cheng, C.]Analytical Department, Albany Molecular Research, Inc, Rensselaer, NY 12144, United States
[ 3 ] [Wang, X.-Y.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Xia, D.-G.]College of Engineering, Peking University, Beijing 100871, China

通讯作者信息：

汪夏燕
[Wang, X.-Y.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

xiayanwang@bjut.edu.cn

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