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High throughput screening of electrocatalysts for fuel cell applications

Rev. Sci. Instrum. 77, 054104 (2006); doi:10.1063/1.2202919

Published 26 May 2006

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Mark Prochaska
Department of Applied and Engineering Physics, and Cornell Fuel Cell Institute, Cornell University, Ithaca, New York 14853

Jing Jin, Dominic Rochefort, Lin Zhuang, Francis J. DiSalvo, and Héctor D. Abruña
Department of Chemistry and Chemical Biology, and Cornell Fuel Cell Institute, Cornell University, Ithaca, New York 14853

R. B. van Dover
Department of Materials Science and Engineering, and Cornell Fuel Cell Institute, Cornell University, Ithaca, New York 14853
We describe methodologies for the generation and screening of combinatorial libraries of electrocatalyst materials for fuel cell applications, generated by cosputtering of three elements onto a Si substrate coated with a Ta adhesion underlayer. Screening was carried out via a fluorescence assay as well as by scanning electrochemical microscopy. Whereas the former provided rapid qualitative screening with limited spatial resolution, the latter provided high spatial resolution. The fluorescence screening method was tested on Pt, PtBi, PtPb, and PtRu nanoparticles, while both methods were tested on a film containing a Pt–Bi–Pb ternary composition spread. ©2006 American Institute of Physics
History: Received 17 December 2005; accepted 10 April 2006; published 26 May 2006
Permalink: http://link.aip.org/link/?RSINAK/77/054104/1

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KEYWORDS and PACS

Keywords
PACS
  • 82.45.Jn
    Surface structure, reactivity and catalysis (electrochemistry)
  • 82.65.+r
    Surface and interface chemistry; heterogeneous catalysis at surfaces
  • 82.47.-a
    Applied electrochemistry
  • 78.55.Hx
    Photoluminescence in solid inorganic materials excluding elemental, II-VI and III-V semiconductors and alkali halides
  • 78.67.Bf
    Optical properties of nanocrystals and nanoparticles
  • YEAR: 2006

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PUBLICATION DATA

ISSN:
0034-6748 (print)   1089-7623 (online)
Publisher:
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