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Oxidation of methanol on the surfaces of model Cu/ZnO catalysts containing Cu1+ and Cu-0 species

Harikumar, KR and Rao, CNR (1997) Oxidation of methanol on the surfaces of model Cu/ZnO catalysts containing Cu1+ and Cu-0 species. In: Catalysis Letters, 47 (4). pp. 265-271.

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Abstract

Interaction of CH3OH with Cu clusters deposited on ZnO films grown on a Zn foil as well as on a ZnO(0001)Zn crystal, has been examined by X-ray photoelectron spectroscopy. On clean Cu clusters, reversible molecular adsorption or formation of CH3O is observed. However if the Cu clusters are pretreated with oxygen, both CH3O and HCOO- species are produced. Model Cu/ZnO catalyst surfaces, containing both Cu1+ and Cu-0 species, show interesting oxidation properties. On a Cu-0-rich catalyst surface, only CH3O species is formed on interaction with CH3OH. On a Cu1+-rich surface, however, HCOO- ion is the predominant species.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Keywords: methanol oxidation;Cu/ZnO catalysts;XPS;intermediate species;methanol^surface interaction
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Ms V Mangala
Date Deposited: 17 Jun 2011 05:31
Last Modified: 17 Jun 2011 05:31
URI: http://eprints.iisc.ac.in/id/eprint/38346

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