In situ Ru K-edge EXAFS of CO adsorption on a Ru modified Pt/C fuel cell catalyst

Rose, Abigail; Bilsborrow, Robert; King, Colin R.; Ravikumar, M. K.; Qian, Yangdong; Wiltshire, Richard J. K.; Crabb, Eleanor M. and Russell, Andrea E. (2009). In situ Ru K-edge EXAFS of CO adsorption on a Ru modified Pt/C fuel cell catalyst. Electrochimica Acta, 54(22) pp. 5262–5266.

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DOI (Digital Object Identifier) Link:	http://dx.doi.org/doi:10.1016/j.electacta.2009.03.060
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Abstract

The Ru–CO bond of CO adsorbed on a Ru modified Pt/C fuel cell catalyst has been directly probed by in situ EXAFS at the Ru K-edge, providing evidence of a CO:metal surface atom ratio greater than 1:1 and that CO is adsorbed at bridging sites associated with Ru atoms at the surface of the catalyst nanoparticles. This result illustrates the limitations of single crystal models as representations of the bonding of adsorbed species at nanoparticle surfaces.

Item Type:	Journal Article
Copyright Holders:	2009 Elsevier Ltd.
ISSN:	0013-4686
Keywords:	PtRu; fuel cell catalysts; CO adsorption; surface area; EXAFS
Academic Unit/Department:	Science > Life, Health and Chemical Sciences
Item ID:	16947
Depositing User:	Colin Smith
Date Deposited:	10 Jun 2009 14:31
Last Modified:	23 Oct 2012 22:35
URI:	http://oro.open.ac.uk/id/eprint/16947

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