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Influence of impurities and catalyst surface characteristics on the oxygen charge transfer reaction in the Pt/YSZ system

Lookup NU author(s): Mas Jalil, Dr Naimah Ibrahim, Dr Danai Poulidi, Professor Ian Metcalfe

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Abstract

Spillover processes (i.e. the migration of ionic species from the support to the catalyst and vice versa) are known to play a very important role in catalysis and electrocatalysis. These spillover processes can be influenced by impurities (pre-existing on the catalyst surface) and by the catalyst morphology that may differ as a result of the differences in catalyst manufacturing processes. This work investigates the influence of impurities present in three commercial platinum (Pt) precursors. The resulting platinum films studied here were supported on yttria-stabilised-zirconia (YSZ). It was found that the three different catalyst films contained a range of impurities (determined by ICP-OES) that appear to affect the oxygen charge transfer reaction as studied by cyclic voltammetry (CV). (C) 2012 Elsevier B.V. All rights reserved.


Publication metadata

Author(s): Jalil MR, Ibrahim N, Poulidi D, Metcalfe IS

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 18th International Conference on Solid State Ionics (SSI)

Year of Conference: 2012

Pages: 390-394

Date deposited: 28/03/2013

ISSN: 0167-2738

Publisher: Elsevier BV

URL: http://dx.doi.org/10.1016/j.ssi.2012.06.011

DOI: 10.1016/j.ssi.2012.06.011

Library holdings: Search Newcastle University Library for this item

Series Title: Solid State Ionics

ISBN: 18727689


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