Gallium–Hydrogen Bond Formation on Gallium and Gallium–Palladium Silica-Supported Catalysts

The interaction of H 2 with Ga/SiO 2, Pd/SiO 2, and Ga–Pd/SiO 2 catalysts has been investigated by in situ X-ray photoelectron and transmission infrared spectroscopies (XPS and FTIR). The precursors, calcined in dry air at 673 K, yield PdO and Ga 2O 3. Upon exposure to hydrogen reduction at 423 K, t...

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Bibliographic Details
Published in:Journal of catalysis 2002-10, Vol.211 (1), p.252-264
Main Authors: Collins, Sebastián E., Baltanás, Miguel A., Garcia Fierro, José L., Bonivardi, Adrian L.
Format: Article
Language:English
Subjects:
Catalysis
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The interaction of H 2 with Ga/SiO 2, Pd/SiO 2, and Ga–Pd/SiO 2 catalysts has been investigated by in situ X-ray photoelectron and transmission infrared spectroscopies (XPS and FTIR). The precursors, calcined in dry air at 673 K, yield PdO and Ga 2O 3. Upon exposure to hydrogen reduction at 423 K, the fraction of reduced gallium ions (Ga δ+ cations, δ
ISSN:0021-9517
1090-2694
DOI:10.1006/jcat.2002.3734