Issue 15, 2002
From the journal:

Physical Chemistry Chemical Physics

In-situXAFSfuel cell measurements of a carbon-supported Pt–Ru anode electrocatalyst in hydrogen and direct methanol operation

Christina Roth,*a   Nathalie Martz,a   Thorsten Buhrmester,a   Joachim Schererb  and  Hartmut Fuessa  

* Corresponding authors

a Institute for Materials Science, Darmstadt University of Technology, Petersenstr. 23, D-64287 Darmstadt, Germany
E-mail: c_roth@tu-darmstadt.de
Fax: +49 (0) 6151 16 60 23
Tel: +49 (0) 6151 16 63 57

b Zentrum für Sonnenenergie- und Wasserstoff-Forschung, Helmholtzstr. 8, D-89081 Ulm, Germany
Fax: +49 (0) 731 95 30 666
Tel: +49 (0) 731 95 30 304

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.

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Article information

DOI
https://doi.org/10.1039/B204293B
Article type
Communication
Submitted
03 May 2002
Accepted
24 Jun 2002
First published
03 Jul 2002

Phys. Chem. Chem. Phys., 2002,4, 3555-3557

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

C. Roth, N. Martz, T. Buhrmester, J. Scherer and H. Fuess, Phys. Chem. Chem. Phys., 2002, 4, 3555 DOI: 10.1039/B204293B

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