Electrooxidation of Methanol on Pt-Modified Conductive Polymer PEDOT

被引：99

作者：

Patra, S. ^{[1
]}

Munichandraiah, N. ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India

来源：

LANGMUIR | 2009年 / 25卷 / 03期

关键词：

CATALYTIC-ACTIVITY; CARBON NANOTUBES; FUEL-CELLS; PLATINUM; OXIDATION; NANOPARTICLES; PERFORMANCE; ELECTRODEPOSITION; ELECTROCATALYSIS; SUPPORT;

D O I：

10.1021/la803099w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Platinum nanoparticles on a conductive polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), exhibit a high catalytic activity for electrooxidation of methanol. Pt nanoparticles are prepared by potentiostatic deposition in chloroplatinic acid solution at 0.1 V versus standard calomel electrode (SCE) on PEDOT coated carbon paper. PEDOT on the substrate facilitates the formation of uniform, well-dispersed, small clusters of Pt that consist of nanosize particles. The cyclic voltammogram of methanol oxidation is characterized by a forward oxidation peak current at 0.60 V vs SCE and a backward oxidation peak current at 0.50 V vs SCE. The mass specific peak current is found to be as high as 614 mA mg(-1), The effects of concentration of H2SO4, mass of Pt, and quantity of PEDOT on mass specific activity are studied.

引用

页码：1732 / 1738

页数：7

共 38 条

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