Electrocatalytic oxidation of methanol on (Pb) lead modified by Pt, Pt-Ru and Pt-Sn microparticles dispersed into poly(o-phenylenediamine) film

被引：42

作者：

Golikand, AN ^{[1
]}

Golabi, SM

Maragheh, MG

Irannejad, L

机构：

[1] Atom Energy Org Iran, Jaber Ibn Hayan Res Lab, Tehran, Iran

[2] Univ Tabriz, Electroanalyt Chem Lab, Fac Chem, Tabriz, Iran

来源：

JOURNAL OF POWER SOURCES | 2005年 / 145卷 / 02期

关键词：

electrooxidation; methanol; fuel cell; poly(o-phenylenediamine); Pt alloys; cyclic voltammetry;

D O I：

10.1016/j.jpowsour.2005.02.061

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：

The electrocatalytic oxidation of methanol at a (Pb) lead electrode modified by Pt, Pt-Ru and Pt-Sn microparticles dispersed into poly(o-phenylenediamine) (PoPD) film has been investigated using cyclic voltammetry as analytical technique and 0.5 M sulfuric acid as supporting electrolyte. It has been shown that the presence of PoPD film increases considerably the efficiency of deposited Pt and Pt alloys microparticles toward the electrocatalytic oxidation of methanol. The catalytic activity of Pt particles is further enhanced when Ru and especially Sn, is co-deposited in the polymer film. The effects of various parameters such as concentration of methanol, medium temperature as well as the long term stability of modified electrodes have also been investigated. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：116 / 123

页数：8

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