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- Title
Study of Microstructure and Catalytic Activity of γ-Bi[sub 2]MoO[sub 6] and Bi[sub 2]WO[sub 6] Compounds.
- Authors
Rangel, R.; Bartolo-Pérez, P.; Gómez-Cortéz, A.; Díaz, G.; Galván, D. H.
- Abstract
Bi[sub 2]MO[sub 6] (M=Mo, W) compounds were prepared for low-temperature oxidation. The catalysts -were prepared by solid-state reaction. The structural changes were followed by X-ray diffraction, scanning electron microscopy, Auger electron spectroscopy and BET nitrogen absorption. Auger analysis shows that Bi[sub 2]WO[sub 6] catalysts have more bismuth on the surface than γ-Bi[sub 2]MoO[sub 6], although both samples are bismuth deficient as compared to the stoichiometric compound. The results regarding catalytic activity show that Bi[sub 2]WO[sub 6] prepared at 1073 K reaches total conversion of CO (100%) at a lower temperature when compared to γ-Bi[sub 2]MoO[sub 6]. This indicates that Bi[sub 2]WO[sub 6] is a potential candidate to be used as catalyst in the CO to CO[sub 2] oxidation.
- Subjects
CATALYSTS; BISMUTH compounds
- Publication
Surface Review & Letters, 2002, Vol 9, Issue 5/6, p1779
- ISSN
0218-625X
- Publication type
Article
- DOI
10.1142/S0218625X02004402