The role of structural silanol groups of silica in the synthesis of molybdenum oxide systems

Citation
Aa. Gomenyuk et al., The role of structural silanol groups of silica in the synthesis of molybdenum oxide systems, RUSS J PH C, 74(5), 2000, pp. 799-802
Citations number
18
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244 → ACNP
Volume
74
Issue
5
Year of publication
2000
Pages
799 - 802
Database
ISI
SICI code
0036-0244(200005)74:5<799:TROSSG>2.0.ZU;2-C
Abstract
Grafted molybdenum chloride groups formed through the interaction of molybd enum pentachloride with silanol groups at the surface of a pyrogenic silica are hydrolyzed to form a deposited poly(molybdenum oxide) phase. A thermoe vacuation of the silica samples thus obtained results in a depolymerization and dispersion of the molybdenum oxide phase and in a binding of molybdenu m oxide with silanol groups reduced by hydrolysis. No reduction of molybden um ions occurs.