Performance of Pt/C catalysts prepared by microwave-assisted polyol process for methanol electrooxidation

被引：76

作者：

Chu, Yuan-Yuan ^{[1
]}

Wang, Zhen-Bo ^{[1
]}

Gu, Da-Ming ^{[1
]}

Yin, Ge-Ping ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Direct methanol fuel cell; Microwave-assisted polyol process; Pt/C catalyst; Anode catalyst; Methanol electrooxidation; FUEL-CELL; CARBON NANOTUBES; PARTICLE-SIZE; ELECTROCATALYTIC ACTIVITY; NANOPARTICLES; PLATINUM; IRRADIATION; REDUCTION; OXIDATION; SUPPORT;

D O I：

10.1016/j.jpowsour.2009.10.039

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：

Pt nanoparticles catalysts supported on the Vulcan XC-72 carbon black with different mean sizes have been synthesized by microwave-assisted polyol process and characterized by energy dispersive analysis of X-ray (EDAX), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The results of physical examinations show that Pt nanoparticles have a narrow size distribution and are highly dispersed on the surface of carbon support, and Pt loading in Pt/C catalyst is the similar with the theoretical value. The results of cyclic voltammetry and chronoamperometry demonstrate that the Pt/C catalyst prepared by microwave-assisted polyol process at the pH value of about 12 exhibits the highest catalytic activity for methanol electrooxidation. The activity of Pt/C catalyst is also related to the microwave heating time, and the optimal heating time is 40s in this work. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1799 / 1804

页数：6

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