Pt∧Ru/C catalysts synthesized by a two-stage polyol reduction process for methanol oxidation reaction

被引：20

作者：

Li, Yuexia ^{[1
,2
,3
]}

Zheng, Liping ^{[1
,2
,3
]}

Liao, Shijun ^{[1
,2
,3
]}

Zeng, Jianhuang ^{[1
,2
,3
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510641, Peoples R China

[2] Minist Educ, Guangdong Prov Key Lab Fuel Cell Technol, Guangzhou, Guangdong, Peoples R China

[3] Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou, Guangdong, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 24期

基金：

中国国家自然科学基金;

关键词：

(PtRu)-Ru-boolean AND/C; Methanol oxidation reaction; Catalyst; CORE-SHELL NANOPARTICLES; OXYGEN REDUCTION; CARBON NANOTUBES; ELECTROCATALYSTS; ELECTROOXIDATION; PLATINUM; SIZE;

D O I：

10.1016/j.jpowsour.2011.08.101

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：

Highly dispersed Ru/C catalysts are prepared using high viscosity glycerol as a reducing agent and are treated in H-2 atmosphere to ensure stability. A (PtRu)-Ru-boolean AND/C catalyst is prepared by an ethylene glycol process based on the pre-formed Ru/C. The catalyst is tested for methanol oxidation reaction at room temperature and is compared with the activity of the as-prepared PtRu/C alloyed catalyst (prepared by co-reduction of Pt and Ru precursors) and commercial PtRu/C from E-TEK. The catalysts are extensively characterized by Transmission electron microscope (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Electrochemical measurements by cyclic voltammetry (CV) showed consistently high catalytic activities and improved CO resistance for the (PtRu)-Ru-boolean AND/C catalyst. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：10570 / 10575

页数：6

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