The surface of iron molybdate catalysts used for the selective oxidation of methanol

Yeo, Benjamin, Pudge, Geoffrey, Bugler, Keith, Rushby, Alice, Kondrat, Simon A., Bartley, Jonathan Keith ORCID: https://orcid.org/0000-0003-4640-541X, Golunski, Stanislaw ORCID: https://orcid.org/0000-0001-7980-8624, Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874, Gibson, E., Wells, P., Brookes, Catherine, Bowker, Michael ORCID: https://orcid.org/0000-0001-5075-1089 and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 2016. The surface of iron molybdate catalysts used for the selective oxidation of methanol. Surface Science 648 , pp. 163-169. 10.1016/j.susc.2015.11.010

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Abstract

The oxidation of methanol to formaldehyde is a major chemical process carried out catalytically and iron molybdate is one of the major catalysts for this process. In this paper we explore the nature of the active and selective surfaces of iron molybdate catalysts and show that the effective catalysts comprise molybdenum rich surfaces. We conclude that it is therefore important to maximise the surface area of these active catalysts and to this end we have studied catalysts made using a new physical grinding method with oxalic acid. For super-stoichiometric materials (Fe:Mo = 1:2.2) the reaction data show that physical mixing produces effective catalysts, possibly offering an improvement over the conventional co-precipitation method.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Cardiff Catalysis Institute (CCI) Chemistry
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	Methanol oxidation; Formaldehyde synthesis; Iron molybdate; Catalyst surface; Catalyst preparation
Publisher:	Elsevier
ISSN:	0036-8075
Date of First Compliant Deposit:	25 October 2016
Date of Acceptance:	25 November 2015
Last Modified:	06 Nov 2024 07:15
URI:	https://orca.cardiff.ac.uk/id/eprint/86835

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