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Selectivity determinants for dual function catalysts: applied to methanol selective oxidation on iron molybdate

Bowker, Michael, House, Matthew, Alshehri, Abdulmohsen, Brookes, Catherine, Gibson, Emma K. and Wells, Peter P. 2015. Selectivity determinants for dual function catalysts: applied to methanol selective oxidation on iron molybdate. Catalysis, Structure & Reactivity 1 (2) , pp. 95-100. 10.1179/2055075815Y.0000000002

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Abstract

Evolution of the IRAS spectrum with temperature after adsorbing methanol at room temperature. The bands at 2930 and 2820 cm− 1 are due to the methoxy species C–H stretches, while that at 2870 is due to the formate. Here, we report a simple, quantitative model to describe the behaviour of bi-cationic oxide catalysts, in terms of selectivity variation as a function of increased loading of one cation into a sample of the other. We consider its application to a particular catalytic system, namely the selective oxidation of methanol, which proceeds with three main C1 products, namely CO2, CO, and H2CO. The product selectivity varies in this order as Mo is added in increasing amounts to an iron oxide catalyst, and the product selectivity is determined by the distribution of dual sites and single sites of each species.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Chemistry
Subjects: Q Science > QD Chemistry
Additional Information: Open Access journal: http://www.tandfonline.com/page/openaccess/openjournals
Publisher: Maney Publishing
ISSN: 2055-074X
Funders: EPSRC
Date of First Compliant Deposit: 30 June 2016
Date of Acceptance: 16 February 2015
Last Modified: 04 Jun 2017 09:01
URI: http://orca.cf.ac.uk/id/eprint/89347

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