One-Pot Synthesis of Platinum Nanoparticles Embedded on Reduced Graphene Oxide for Oxygen Reduction in Methanol Fuel Cells

被引：72

作者：

Ha, Hyung-Wook ^{[1
,2
]}

Kim, In Young ^{[3
]}

Hwang, Seong-Ju ^{[3
]}

Ruoff, Rodney S. ^{[1
,2
]}

机构：

[1] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA

[2] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA

[3] Ewha Womans Univ, Ctr Intelligent Nanobio Mat CINBM, Dept Chem & Nano Sci, Coll Nat Sci, Seoul 120750, South Korea

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2011年 / 14卷 / 07期

基金：

美国国家科学基金会;

关键词：

ELECTROCATALYSTS; CARBON;

D O I：

10.1149/1.3584092

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A simple approach has been developed for the synthesis of Pt nanoparticles with uniform diameters of approximately 2.9 nm supported on reduced graphene oxide (RG-O) platelets via a modified polyol method. Compared to Johnson Matthey (JM) Pt/C (75 wt % Pt) catalyst, the Pt/RG-O (70 wt % Pt) composite showed much higher electrochemical surface area, greater catalytic activity towards the oxygen reduction reaction (ORR), and significantly better single cell polarization performance. The maximum power density of the Pt/RG-O composite was about 128 mW cm(-2), an 11% greater than the JM Pt/C commercial catalyst. (C) 2011 The Electrochemical Society. [DOI: 10.1149/1.3584092] All rights reserved.

引用

页码：B70 / B73

页数：4

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