Metal alloy catalysts with Pt surface coating by atomic layer deposition for intermediate temperature ceramic fuel cells

Joon Hyung Shim, Xirong Jiang, Stacey Bent, Fritz B. Prinz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have tested atomic layer deposition (ALD) of platinum layers onto various sputtered porous metals including silver, palladium, ruthenium and gold as catalysts of ceramic fuel cells expecting good surface alloying. We investigated thermal and chemical stability against oxidation using x-ray photoelectron spectroscopy (XPS). Fuel cell tests were conducted using the metal-ALD Pt cathodes with 200μm-thick 8% yttria stabilized zirconia electrolytes and sputtered platinum anodes. Performance of the fuel cells was measured by comparing the current-voltage curves and maximum power densities with varying temperature.

Original languageEnglish
Title of host publicationECS Transactions
Pages323-332
Number of pages10
Volume25
Edition4
Publication statusPublished - 2009 Dec 1
Externally publishedYes
Event5th Symposium on Atomic Layer Deposition - 216th Meeting of the Electrochemical Society - Vienna, Austria
Duration: 2009 Oct 52009 Oct 7

Other

Other5th Symposium on Atomic Layer Deposition - 216th Meeting of the Electrochemical Society
CountryAustria
CityVienna
Period09/10/509/10/7

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Shim, J. H., Jiang, X., Bent, S., & Prinz, F. B. (2009). Metal alloy catalysts with Pt surface coating by atomic layer deposition for intermediate temperature ceramic fuel cells. In ECS Transactions (4 ed., Vol. 25, pp. 323-332)