Sputter deposition of Pt nanoclusters and thin films on PEM fuel cell electrodes

被引：62
|
作者：
Alvisi, M
Galtieri, G
Giorgi, L
Giorgi, R
Serra, E
Signore, MA
机构：
[1] ENEA, Brindisi Res Ctr, Mat & New Technol Dept, I-72100 Brindisi, Italy
[2] ENEA, Casaccia Res Ctr, Mat & New Technol Dept, I-00060 Rome, Italy
来源：
SURFACE & COATINGS TECHNOLOGY | 2005年 / 200卷 / 5-6期
关键词：
fuel cell; sputtering; Pt catalyst; nanoclusters;
D O I：
10.1016/j.surfcoat.2005.07.093
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Sputter deposition was investigated as a tool for manufacturing proton-exchange membrane fuel cell (PEMFC) electrodes with improved performance and better catalyst utilization vs. commercial electrode. Nanosized (diameter 2-5 run) platinum clusters were deposited on gas diffusion electrodes (carbon paper+PTFE/C diffusive layer). The activity for methanol oxidation was increased about 14 times compared to 2 commercial catalyst, with loading < 0.02 mg cm(.)(-2) SEM-FEG characterization and cyclic voltammetry were carried out to study the morphology, and the behavior of the Pt clusters as cathodic electrocatalyst of a polymer electrolyte fuel cell. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：1325 / 1329
页数：5
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