The surface of iron molybdate catalysts used for the selective oxidation of methanol
Authors (13): B. R. Yeo, G. J. F. Pudge, K. G. Bugler, A. V. Rushby, S. A. Kondrat, J. K. Bartley, S. Golunski, S. H. Taylor, E. K. Gibson, P. P. Wells, C. Brookes, M. Bowker, G. J. Hutchings
Themes: Environment DOI: 10.1016/j.susc.2015.11.010
Citations: 41
Pub type: article-journal
Pub year: 2016
Authors (13): B. R. Yeo, G. J. F. Pudge, K. G. Bugler, A. V. Rushby, S. A. Kondrat, J. K. Bartley, S. Golunski, S. H. Taylor, E. K. Gibson, P. P. Wells, C. Brookes, M. Bowker, G. J. Hutchings
Themes: Environment DOI: 10.1016/j.susc.2015.11.010
Citations: 41
Pub type: article-journal
Pub year: 2016
Publisher: Elsevier BV
Issue:
License: https://www.elsevier.com/tdm/userlicense/1.0/
Publication date(s): 2016/06 (print)
Pages: 163-169
Volume: 648 Issue:
Journal: Surface Science
Link: https://api.elsevier.com/content/article/PII:S0039602815003829?httpAccept=text/xml
URL: http://dx.doi.org/10.1016/j.susc.2015.11.010
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.
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