Wells, P. P.; Crabb, E. M.; King, C. R.; Wiltshire, R.; Bilsborrow, B.; Thompsett, D. and Russell, A. E.
(2009).
| DOI (Digital Object Identifier) Link: | http://doi.org/10.1039/b823504j |
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| Google Scholar: | Look up in Google Scholar |
Abstract
A controlled surface reaction technique has been successfully employed to prepare a series of Pt modified Pd/C (Pt/Pd/C) and Pd modified Pt/C (Pd/Pt/C) catalysts. The resulting catalyst materials were characterised by TEM, XRD, electrochemistry, and EXAFS techniques. In the case of the Pd/Pt/C carbon catalysts, core-shell structural arrangements were found, with a 0.04 angstrom contraction of the Pd-Pd bond distance for the 1 Pd/Pt/C being observed. A greater degree of alloying was found for the Pt/Pd/C catalysts where the surface had a mixed composition with a large proportion of the Pt in the interior of the nanoparticle. However, strong Pt characteristics were exhibited in the voltammetry of Pt/Pd/C catalysts, most notably a large increase in the stability with respect to the electrochemical environment compared to Pd alone.
| Item Type: | Journal Article | ||||||
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| Copyright Holders: | 2009 Royal Society of Chemistry | ||||||
| ISSN: | 1463-9076 | ||||||
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| Keywords: | surface organometallic chemistry; palladium alloy electrocatalysts; oxygen reduction reaction; o-2 reduction; catalysts; pt(111); metals; nanoparticles; deposition; oxidation | ||||||
| Academic Unit/Department: | Faculty of Science, Technology, Engineering and Mathematics (STEM) > Life, Health and Chemical Sciences Faculty of Science, Technology, Engineering and Mathematics (STEM) |
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| Interdisciplinary Research Centre: | Biomedical Research Network (BRN) Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
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| Item ID: | 17922 | ||||||
| Depositing User: | Eleanor Crabb | ||||||
| Date Deposited: | 21 Sep 2009 12:56 | ||||||
| Last Modified: | 02 Aug 2016 13:31 | ||||||
| URI: | http://oro.open.ac.uk/id/eprint/17922 | ||||||
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