Direct synthesis of few-layer graphene supported platinum nanocatalyst for methanol oxidation

被引：8

作者：

Tan, Hong ^{[1
,2
]}

Ma, Xiaohui ^{[1
,2
]}

Sheng, Leimei ^{[1
,2
]}

An, Kang ^{[1
,2
]}

Yu, Liming ^{[1
,2
]}

Zhao, Hongbin ^{[2
,3
]}

Xu, Jiaqiang ^{[3
]}

Ren, Wei ^{[1
,4
]}

Zhao, Xinluo ^{[1
,2
]}

机构：

[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Inst Low Dimens Carbons & Device Phys, Shanghai 200444, Peoples R China

[3] Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China

[4] Shanghai Univ, Int Ctr Quantum & Mol Struct, Shanghai 200444, Peoples R China

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2014年 / 53卷 / 11期

基金：

中国国家自然科学基金;

关键词：

MULTIWALLED CARBON NANOTUBES; FUEL-CELLS; ELECTROCATALYTIC ACTIVITY; CATALYTIC PERFORMANCE; RAMAN-SPECTROSCOPY; OXYGEN REDUCTION; NANOPARTICLES; ELECTROOXIDATION; COMPOSITE; FUNCTIONALIZATION;

D O I：

10.7567/JJAP.53.117101

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-crystalline few-layer graphene supported Pt nanoparticles have been synthesized by arc discharge evaporation of carbon electrodes containing Pt element. A high-temperature treatment under hydrogen atmosphere has been carried out to obtain a new type of Pt/graphene catalyst for methanol oxidation in direct methanol fuel cell. The morphology and structure characterizations of as-grown few-layer graphene supported Pt nanoparticles and Pt/graphene catalysts have been studied by Raman spectroscopy, scanning electron microscopy with energy-dispersive spectroscopy, and high-resolution transmission electron microscopy. Cyclic voltammograms and chronoamperometric curves show that our present Pt/graphene catalysts have larger current density for methanol oxidation, higher tolerance to carbon monoxide poisoning, and better stability during the operating procedure, compared to commercial Pt/C catalysts. (C) 2014 The Japan Society of Applied Physics.

引用

页数：7

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