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Title: In situ GaK edge XANES study of the activation of Ga/ZSM-5 prepared by chemical vapor deposition of trimethylgallium
Authors: Hensen, EJM ×
Garcia-Sanchez, M
Rane, N
Magusin, Pieter
Liu, PH
Chao, KJ
van Santen, RA #
Issue Date: 2005
Publisher: J.C. Baltzer
Series Title: Catalysis Letters vol:101 issue:1-2 pages:79-85
Abstract: The activation of a dimethylgallium/ZSM-5 precursor to well-defined reduced and oxidized species is studied by in situ Ga K edge XANES. The precursor is prepared by chemical implanting of trimethylgallium on acidic HZSM-5. Subsequent reduction leads to charge-compensating Ga+ species. Direct oxidation of the trimethylgallium precursor leads to various forms of gallium oxide and regeneration of Brønsted acid protons. Oxidation of the reduced Ga+ species yields predominantly to GaO+ species. The GaO+ species exhibit a much higher H2/D2 exchange activity than reduced Ga+ species.
ISSN: 1011-372X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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