The graphene-supported Pd and Pt catalysts for highly active oxygen reduction reaction in an alkaline condition

被引：229

作者：

Seo, Min Ho ^{[1
]}

Choi, Sung Mook ^{[1
]}

Kim, Hyung Ju ^{[1
]}

Kim, Won Bae ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Sch Mat Sci & Engn, Kwangju 500712, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 02期

关键词：

Electrocatalyst; Graphene; Palladium; Oxygen reduction reaction; Alkaline fuel cell; SURFACE-AREA; NANOPARTICLES; PERFORMANCE;

D O I：

10.1016/j.elecom.2010.12.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The oxygen reduction reaction (ORR) has been studied on graphene-supported electrocatalysts in alkaline media. Uniformly dispersed Pd nanoparticles with a mean diameter of ca. 1.8 nm can be successfully obtained on graphene sheets (GNSs) through chemical synthesis, even at a high metal loading of 60 wt.%. The ORR activity of these catalysts was investigated in a 0.1 M NaOH solution, and the kinetic parameters were determined by the rotating disk electrode (RDE) technique. The GNS-supported Pd catalyst (Pd/GNS) shows significantly high catalytic activity for the ORR. For comparison, the GNS-supported Pt catalyst (Pt/GNS) was also synthesized and investigated under the same experimental conditions. (C) 2010 Elsevier B.V. All rights reserved.

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页码：182 / 185

页数：4

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