Graphene nanoplate-Pt composite as a high performance electrocatalyst for direct methanol fuel cells

被引：170

作者：

Huang, Huajie ^{[1
]}

Chen, Haiqun ^{[2
]}

Sun, Dongping ^{[1
]}

Wang, Xin ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Minist Educ, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China

[2] Changzhou Univ, Key Lab Fine Petrochem Engn, Changzhou 213164, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2012年 / 204卷

基金：

国家高技术研究发展计划(863计划);

关键词：

Graphene nanoplate; Pt nanoparticles; Electrocatalyst; Direct methanol fuel cells; CARBON NANOTUBES; GRAPHITE OXIDE; CATALYTIC PERFORMANCE; OXYGEN REDUCTION; CATHODE CATALYST; ANODE CATALYST; RAMAN-SPECTRA; OXIDATION; NANOPARTICLES; DMFC;

D O I：

10.1016/j.jpowsour.2012.01.023

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A soft chemical method has been developed to load Pt nanoparticles on graphene nanoplates (GNPs) without damaging their graphene structures. Our approach does not require cumbersome oxidation of graphite in advance and needs no subsequent reduction of graphene oxide (GO) with reducing agents or by thermal treatment. Transmission electron microscope observation reveals that Pt nanoparticles with an average diameter of 2.3 nm are uniformly dispersed on the GNP surface. Raman spectroscopy confirms the GNPs have a very low defect density. This graphene nanoplate-Pt (GNP/Pt) composite exhibits superior electrochemical activity and high poison tolerance toward methanol oxidation compared to reduced graphene oxide-Pt (RGO/Pt) and Vulcan XC-72-Pt (XC-72/Pt) with the same Pt content, which demonstrate that the GNPs can be used as promising electrocatalyst supports for direct methanol fuel cells. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：46 / 52

页数：7

共 54 条

[41] Functionalized single graphene sheets derived from splitting graphite oxide [J].