Spectroscopic study on the surface structure and environment of fixed Mo catalysts prepared by use of Mo(π-C3H5)4
- 1 January 1979
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 75, 1465-1476
- https://doi.org/10.1039/f19797501465
Abstract
The surface structure, the environment and the distribution of the active sites of fixed Mo catalysts were spectroscopically investigated and compared with those of conventional catalysts made by an impregnation method. The fixed catalysts were found to have the tetrahedral dioxostructure of six-valent molybdenum with coordination unsaturation, uniformly and atomically populated at silica or alumina surface, in a different environment from that of the impregnation catalysts. Such properties of molybdenum are thought to be essential factors for catalytic action in the abstraction of a hydrogen atom(hydride) from the C—H bond of a reactant. There are three different types of molybdenum species in the impregnation silica catalysts.Keywords
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