XPS STUDY OF CATALYTIC COMPOUNDS H2V12-XMEXO31-DELTA NH2O (ME - MO, CR)

Citation
Mv. Kuznetsov et al., XPS STUDY OF CATALYTIC COMPOUNDS H2V12-XMEXO31-DELTA NH2O (ME - MO, CR), Journal of electron spectroscopy and related phenomena, 68, 1994, pp. 579-588
Citations number
22
Categorie Soggetti
Spectroscopy
ISSN journal
03682048
Volume
68
Year of publication
1994
Pages
579 - 588
Database
ISI
SICI code
0368-2048(1994)68:<579:XSOCCH>2.0.ZU;2-S
Abstract
X-rav Photoelectron spectroscopy has been used for the study of inclus ion compounds H2V12-xMoxO31-delta nH2O (x = 0-3.0) and H2V12-xCrxO31-d elta nH2O (x = 0-4.0). The spectra from V2p, Mo3d, Cr2p and O1s electr on levels have been obtained and interpreted. As is shown, chromium en ters into the structure of polyvanadic acid in Cr and Cr3+ states, whi le molybdenum atoms are six valent. Some increased concentration of Cr , Mo ions and OH- - groups has been detected at xerogel surfaces.