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Composition- and Morphology-Dependent Corrosion Stability of Ruthenium Oxide Materials

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ABSTRACT
Ruthenium oxide materials were evaluated as possible non-carbon-based supports for fuel cell catalysts. The effects of composition and morphology of ruthenium oxide materials on the conductivity and corrosion stability in the gas-diffusion electrode (GDE) configuration were thoroughly investigated. The compositions of the bulk and surface of three ruthenium oxide materials, along with the surface area and surface morphology, were compared. We have found that all tested ruthenium oxide powders exhibited higher corrosion stability compared to carbon. Full conversion of RuO2 · nH2O to the RuO2 phase by postreduction in a hydrogen
atmosphere leads to improved conductivity and corrosion stability.

KEYWORDS: ruthenium oxide • noncarbon • support • corrosion • fuel cell

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Informasi Detail

Judul Seri

ACS Applied Materials & Interfaces

No. Panggil

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Penerbit

Washington, DC : American Chemical Society., 2009

Deskripsi Fisik

ACS Appl. Mater. Interfaces, 2009, 1 (3), 604-611

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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