Methanol Oxidation over TiO2-modified Multi-walled Carbon Nanotubes Supported Pt-Mo Electrocatalyst

被引：0

作者：

Wang Xiu-yu ^{[1
]}

Jiang Yuan-sheng ^{[2
]}

Zhu Hong ^{[1
]}

Zhang Jing-chang ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Inst Modern Catalyst, Beijing 100029, Peoples R China

[2] Nanjing Univ, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2011年 / 27卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Methanol oxidation; Direct methanol fuel cell; Molybdenum oxide; Platinum; FUEL-CELLS; H-2/CO MIXTURES; ANODE CATALYST; ELECTROOXIDATION; ELECTRODES; PLATINUM; SURFACE; RU/C; CO; PERFORMANCE;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In order to develop a novel and high-performance catalytic material for direct methanol fuel cells(DMFC), molybdenum oxide as a co-catalyst with Pt on multi-walled carbon nanotubes which were modified by titanium dioxide(denoted as CNTs@TiO2) was investigated. The physicochemical characterizations of the catalysts were carried Out via X-ray diffraction(XRD), transmission electron microscopy(TEM) and X-ray photoelectron spectroscopy(XPS). Cyclic voltammetry(CV) showed that the CO-tolerance performance increased in the sequence of Pt/CNTs<Pt/CNTs@TiO2<Pt-Mo/CNTs@TiO2. The improved CO-tolerance performance of the Pt-Mo/CNTs@TiO2 catalyst can be attributed to the combined beneficial effects of highly dispersed Pt nanoparticles on the CNTs, the existence of oxygen holes in the MoO3 layer structure and the oxidation capability of TiO2.

引用

页码：486 / 489

页数：4

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