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

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 nm) platinum clusters were deposited on gas diffusion electrodes (carbon p...

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Bibliographic Details
Published in:Surface & coatings technology 2005-11, Vol.200 (5), p.1325-1329
Main Authors: Alvisi, M., Galtieri, G., Giorgi, L., Giorgi, R., Serra, E., Signore, M.A.
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fuel cell
Materials science
Metals. Metallurgy
Nanoclusters
Other topics in materials science
Physics
Production techniques
Pt catalyst
Sputtering
Surface treatment
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Summary: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 nm) 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 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.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2005.07.093