Temperature-programmed desorption study of the oxidation of methanol to formaldehyde on TiO2(110)-supported vanadia monolayers

Authors
Wong, GS Kragten, DD Vohs, JM
Citation
Gs. Wong et al., Temperature-programmed desorption study of the oxidation of methanol to formaldehyde on TiO2(110)-supported vanadia monolayers, SURF SCI, 452(1-3), 2000, pp. L293-L297
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
452
Issue
1-3
Year of publication
2000
Pages
L293 - L297
Database
ISI
SICI code
0039-6028(20000501)452:1-3<L293:TDSOTO>2.0.ZU;2-P
Abstract
The reaction of methanol on TiO2(110)-supported vanadium oxide was studied using temperature-programmed desorption (TPD). TPD results show that methan ol is oxidized to formaldehyde on a TiO2(110)-supported vanadium oxide mono layer at 660 K, whereas both clean TiO2(110) and TiO2(110)-supported vanadi a multilayers are inactive for this reaction. This result is similar to the reactivity trends found for high-surface-area catalysts. This suggests tha t an oxide film supported on a single-crystal metal oxide surface may be an excellent model system for studying the structure-reactivity relationships of supported oxide catalysts. (C) 2000 Published by Elsevier Science B.V. All rights reserved.