Support effects on the oxidation of methanol at platinum nanoparticles

被引：27
|
作者：
Moghaddam, Reza B. [1 ]
Pickup, Peter G. [1 ]
机构：
[1] Mem Univ Newfoundland, Dept Chem, St John, NF A1B 3X7, Canada
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 07期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Electrocatalysis; Methanol; Platinum; Nanoparticle; Support; ELECTROCATALYTIC OXIDATION; GOLD NANOPARTICLES; POLYANILINE; RUTHENIUM;
D O I：
10.1016/j.elecom.2011.04.015
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The effects of Ru oxide and polyaniline supports on methanol oxidation have been investigated by drop coating of Pt nanoparticles onto glassy carbon electrodes coated with these materials. A thin Ru oxide film, deposited by the spontaneous reaction of Ru(VII) with the carbon surface, has been shown to exert a substantial effect, while the effects of polyaniline were insignificant. The influence of Ru oxide is attributed to the well-known bifunctional mechanism, while previous reports of enhanced methanol oxidation at polyaniline supported Pt catalysts are attributed to better Pt dispersion and/or enhanced transport properties of the catalysts. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：704 / 706
页数：3
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