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

共 35 条

[1] Analysis of the high-temperature methanol oxidation behaviour at carbon-supported Pt-Ru catalysts [J].

Aricò, AS ;

Baglio, V ;

Di Blasi, A ;

Modica, E ;

Antonucci, PL ;

Antonucci, V .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2003, 557 :167-176

[2] INVESTIGATION OF A CARBON-SUPPORTED QUATERNARY PT-RU-SN-W CATALYST FOR DIRECT METHANOL FUEL-CELLS [J].

ARICO, AS ;

POLTARZEWSKI, Z ;

KIM, H ;

MORANA, A ;

GIORDANO, N ;

ANTONUCCI, V .

JOURNAL OF POWER SOURCES, 1995, 55 (02) :159-166

[3] ELECTROCATALYSIS OF METHANOL OXIDATION BY ADSORBED TIN ON PLATINUM [J].

BITTINSCATTANEO, B ;

IWASITA, T .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1987, 238 (1-2) :151-161

[4]

CATHRO KJ, 1969, J ELECTROCHEM SOC, V116, P1609

[5] Enhancement of the electrooxidation of ethanol on a Pt-PEM electrode modified by tin.: Part I:: Half cell study [J].

Delime, F ;

Léger, JM ;

Lamy, C .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1999, 29 (11) :1249-1254

[6] THE EFFECT OF SN ON PT/C CATALYSTS FOR THE METHANOL ELECTROOXIDATION [J].

FRELINK, T ;

VISSCHER, W ;

VANVEEN, JAR .

ELECTROCHIMICA ACTA, 1994, 39 (11-12) :1871-1875

[7] Electrocatalytic oxidation of methanol at lower potentials on glassy carbon electrode modified by platinum and platinum alloys incorporated in poly(o-aminophenol) film [J].

Golabi, SM ;

Nozad, A .

ELECTROANALYSIS, 2003, 15 (04) :278-286

[8] Electrocatalytic oxidation of methanol on electrodes modified by platinum microparticles dispersed into poly(o-phenylenediamine) film [J].

Golabi, SM ;

Nozad, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2002, 521 (1-2) :161-167

[9] METHANOL OXIDATION ON UNSUPPORTED AND CARBON SUPPORTED PT + RU ANODES [J].

GOODENOUGH, JB ;

HAMNETT, A ;

KENNEDY, BJ ;

MANOHARAN, R ;

WEEKS, SA .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 240 (1-2) :133-145

[10] The HER performance of colloidal Pt nanoparticles incorporated in polyaniline [J].

Grzeszczuk, M ;

Poks, P .

ELECTROCHIMICA ACTA, 2000, 45 (25-26) :4171-4177

← 1 2 3 4 →