CO spillover and oxidation on Pt/TiO2Green, R., Morrall, P. and Bowker, M. (2004) CO spillover and oxidation on Pt/TiO2. Catalysis Letters, 98 (2-3). pp. 129-133. ISSN 1011-372X Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. Official URL: http://www.springer.com/chemistry/journal/10562 Abstract/SummaryThe adsorption of CO has been measured on a 2.5 wt% Pt/TiO2 catalyst using TPD. A somewhat surprising observation is that (i) CO2 is produced, even though oxygen is not dosed into the system, (ii) repeated experiments result in the same amount of CO2 desorption. The results appear to be due to a combination of factors-(i) is due to spillover of CO from the Pt to the TiO2 support, while (ii) is due to the diffusion of Ti3+ into the bulk of the TiO2 crystallite, which effectively removes the surface non-stoichiometry which might otherwise be expected.
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