Electrochemistry of platinum nanoparticles supported in polypyrrole (PPy)/C composite materials

被引：44

作者：

Mokrane, Souad ^{[1
,2
]}

Makhloufi, Laid ^{[2
]}

Alonso-Vante, Nicolas ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, UMR 6503, Lab Electrocatalysis, F-86022 Poitiers, France

[2] Univ A Mira, Dept Genie Procedes, Lab Electrochim & Corros, Bejaia 06000, Algeria

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2008年 / 12卷 / 05期

关键词：

polypyrrole; composites; nanoparticles; platinum-carbonyl; substrate effect;

D O I：

10.1007/s10008-007-0398-x

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Conducting polypyrrole (PPy)/C (Vulcan XC-72) composite materials were synthesized by chemical polymerization method. These materials were used as matrix to support platinum nanoparticles, which were produced by the carbonyl chemical route. For the same catalyst loading (50 mu g cm(-2)), it was observed that the nature of the composite strongly influences the electrochemical activity of nanoparticulated platinum toward the oxygen reduction reaction in acid medium. The variation of the PPy/C ratio determines the so-called substrate effect for electrocatalysis.

引用

页码：569 / 574

页数：6