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In situ XAFS fuel cell measurements of a carbon-supported Pt-Ru anode electrocatalyst in hydrogen and direct methanol operation

Roth, Christina and Martz, Nathalie and Buhrmester, Thorsten and Scherer, J. and Fuess, Hartmut (2002):
In situ XAFS fuel cell measurements of a carbon-supported Pt-Ru anode electrocatalyst in hydrogen and direct methanol operation.
In: Physical chemistry, chemical physics, Royal Society of Chemistry Publishing, pp. 3555-3557, 4, [Article]

Abstract

A special in-situ PEM fuel cell has been developed to make XAFS measurements during hydrogen and direct methanol operation possible. The chosen set-up in transmission allows for the on-line monitoring of changes in the catalysts oxidation states and their characteristic short-range order. In both operation modes, the catalyst is reduced during operation, as can be concluded from the XANES region of the spectra showing a decreased white-line intensity in E space.

Item Type: Article
Erschienen: 2002
Creators: Roth, Christina and Martz, Nathalie and Buhrmester, Thorsten and Scherer, J. and Fuess, Hartmut
Title: In situ XAFS fuel cell measurements of a carbon-supported Pt-Ru anode electrocatalyst in hydrogen and direct methanol operation
Language: English
Abstract:

A special in-situ PEM fuel cell has been developed to make XAFS measurements during hydrogen and direct methanol operation possible. The chosen set-up in transmission allows for the on-line monitoring of changes in the catalysts oxidation states and their characteristic short-range order. In both operation modes, the catalyst is reduced during operation, as can be concluded from the XANES region of the spectra showing a decreased white-line intensity in E space.

Journal or Publication Title: Physical chemistry, chemical physics
Volume: 4
Publisher: Royal Society of Chemistry Publishing
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Erneuerbare Energien
11 Department of Materials and Earth Sciences > Material Science > Structure Research
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 20 Nov 2008 08:16
License: [undefiniert]
Funders: Financial support of the Deutsche Forschungsgemeinschaft (Fu 125/34-1-3) is gratefully acknowledged.
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