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

Marco Alvisi, G. Galtieri, L. Giorgi, R. Giorgi, E. Serra, M.A. Signore

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Abstract

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. © 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)1325 - 1329
Number of pages5
JournalSurface and Coatings Technology
Volume200
Issue number5-6
DOIs
Publication statusPublished - 21 Nov 2005
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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