INFLUENCE OF THE SUPPORT ON THE STATE OF NICKEL IN THE NI SIO2, NI/ZRO2, AND NI/SO4/ZRO2 OXIDE SYSTEMS STUDIED BY DIFFUSE-REFLECTANCE IR SPECTROSCOPY/

Authors
IVANOV AV KUSTOV LM
Citation
Av. Ivanov et Lm. Kustov, INFLUENCE OF THE SUPPORT ON THE STATE OF NICKEL IN THE NI SIO2, NI/ZRO2, AND NI/SO4/ZRO2 OXIDE SYSTEMS STUDIED BY DIFFUSE-REFLECTANCE IR SPECTROSCOPY/, Russian chemical bulletin, 47(3), 1998, pp. 394-397
Citations number
22
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
47
Issue
3
Year of publication
1998
Pages
394 - 397
Database
ISI
SICI code
1066-5285(1998)47:3<394:IOTSOT>2.0.ZU;2-7
Abstract
The Ni/SiO2, Ni/ZrO2, and Ni/SO4/ZrO2 systems were studied by diffuse- reflectance IR spectroscopy using CO as a probe molecule. The Ni/SiO2 and Ni/ZrO2 systems are similar in properties, and the state of nickel in the Ni/ZrO2 system is determined by the specific surface area. In the Ni/SO4/ZrO2 system, the surface sulfur compounds affect substantia lly the state of nickel: Nidelta+ species with a partial positive char ge are formed due to the strong electron-acceptor properties of the su lfur compounds.