Co-sputtering growth and electro-oxidation properties of Pt-CuO nanocomposites for direct methanol thin film fuel cells

被引：14

作者：

Ahn, Hyo-Jin ^{[2
]}

Shim, Hee-Sang ^{[2
]}

Kim, Won Bae ^{[2
]}

Sung, Yung Eun ^{[3
]}

Seong, Tae-Yeon ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[2] Gwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea

[3] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151744, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 471卷 / 1-2期

关键词：

Thin-film fuel cell; Co-sputtering; Pt; CuO; Nanocomposite; ELECTROCHEMICAL OXIDATION; ELECTROCATALYSTS; SUPPORT;

D O I：

10.1016/j.jallcom.2008.04.008

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：

We investigated the catalytic activity of Pt-incorporated CuO electrodes for thin-film fuel cells. The electron microscopy and X-ray diffraction results show the formation of Pt nanoparticles embedded within an amorphous CuO matrix (Pt-CuO nanocomposite). The Pt-CuO nanocomposite electrode gives a much higher current density than a Pt only electrode at an accelerating voltage of 0.67 V in a mixture of 2.0 M CH3OH and 0.5 M H2SO4 solutions. The enhanced catalytic activity of the nanocomposite electrode is attributed to the increased active surface area, due to the formation of Pt nanoparticles, and the amorphous CuO supporting matrix. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：L39 / L42

页数：4

共 18 条

[1] Use of Sn-Si nanocomposite electrodes for Li rechargeable batteries [J].