Publication
Title
Thermal decomposition of $VO(acac)_{2}$ deposited on the surfaces of silica and alumina
Author
Abstract
 A promising way to create supported metal oxide catalysts consists of the irreversible adsorption of metal acetylacetonate complexes on an oxide support and the subsequent thermolysis of the metal complexes. This study focuses on the adsorption and thermolysis of vanadyl acetylacetonate (VO(acac)(2)) on both silica and alumina supports and investigates how the thermal decomposition of the supported complex influences the final catalytic activity of the VOx monolayer. The supported complex was subjected to thermal treatment both in vacuum and in ambient air and was analyzed in situ by infrared spectroscopy and thermogravimetry. The adsorbed complex is very stable in vacuum conditions. A very distinct VOH vibration was observed during the thermolysis in air of the silica-supported complex, and intermediate acetate species were observed for the alumina-supported complex.
Language
English
Source (journal)
Langmuir: the ACS journal of surfaces and colloids. - Washington, D.C.
Publication
Washington, D.C. : 1998
ISSN
0743-7463
Volume/pages
14 :1 (1998) , p. 106-112
ISI
000071440700014
Full text (Publisher's DOI)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address