The effect of the structure of molybdenum oxides on the selective oxidation of methanol

C. J. Machiels, W. H. Cheng, U. Chowdhry, W. E. Farneth, Franklin Chau-Nan Hong, E. M. Mc Carron, A. W. Sleight

Research output: Contribution to journalArticle

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Abstract

Selective oxidation of methanol to formaldehyde has been studied over a series of molybdates, molybdenum oxides, mixed tungsten - molybdenum oxides, and supported molybdenum oxide. Reactor studies, Temperature Programmed Reaction (TPR) and in-situ FTIR have shown that water and methanol adsorb dissociatively and reversibly on the same catalyst sites and that the rate determining step is the breaking of a carbon-hydrogen bond. The reaction is of a redox type and a nearly fully oxidized catalyst is most active and selective. The difference in activity between molybdenum trioxide and ferric molybdate can be explained by a mechanism in which formation of adsorbed methoxys does not occur on the predominant (010) face of MoO3. Oxide-support interactions are responsible for the lower selectivity of silica supported catalysts.

Original languageEnglish
Pages (from-to)249-256
Number of pages8
JournalApplied Catalysis
Volume25
Issue number1-2 C
DOIs
Publication statusPublished - 1986 Aug 15

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Molybdenum oxide
Methanol
Catalyst supports
Oxidation
Catalysts
Catalyst selectivity
Formaldehyde
Molybdenum
Tungsten
Hydrogen bonds
Silica
Carbon
Oxides
Water
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Machiels, C. J., Cheng, W. H., Chowdhry, U., Farneth, W. E., Hong, F. C-N., Mc Carron, E. M., & Sleight, A. W. (1986). The effect of the structure of molybdenum oxides on the selective oxidation of methanol. Applied Catalysis, 25(1-2 C), 249-256. https://doi.org/10.1016/S0166-9834(00)81243-9
Machiels, C. J. ; Cheng, W. H. ; Chowdhry, U. ; Farneth, W. E. ; Hong, Franklin Chau-Nan ; Mc Carron, E. M. ; Sleight, A. W. / The effect of the structure of molybdenum oxides on the selective oxidation of methanol. In: Applied Catalysis. 1986 ; Vol. 25, No. 1-2 C. pp. 249-256.
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Machiels, CJ, Cheng, WH, Chowdhry, U, Farneth, WE, Hong, FC-N, Mc Carron, EM & Sleight, AW 1986, 'The effect of the structure of molybdenum oxides on the selective oxidation of methanol', Applied Catalysis, vol. 25, no. 1-2 C, pp. 249-256. https://doi.org/10.1016/S0166-9834(00)81243-9

The effect of the structure of molybdenum oxides on the selective oxidation of methanol. / Machiels, C. J.; Cheng, W. H.; Chowdhry, U.; Farneth, W. E.; Hong, Franklin Chau-Nan; Mc Carron, E. M.; Sleight, A. W.

In: Applied Catalysis, Vol. 25, No. 1-2 C, 15.08.1986, p. 249-256.

Research output: Contribution to journalArticle

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