Multilayer structure of molybdena/γ-alumina catalysts prepared using different methods

The apparent surface coverage by molybdena in three series of MoO 3 γ-Al 2 O 3 catalysts prepared by different methods was determined by electrophoretic migration. These methods were designed to vary the extent of clustering (polymerization) in the solutions and on the wet catalysts. The combined us...

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Bibliographic Details
Published in:Journal of catalysis 1984, Vol.90 (2), p.323-328
Main Authors: Gil-Llambías, F.J., Escudey-Castro, A.M., Agudo, A.López, García-Fierro, J.L.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts: preparations and properties
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
General. Nomenclature, chemical documentation, computer chemistry
Theory of reactions, general kinetics
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The apparent surface coverage by molybdena in three series of MoO 3 γ-Al 2 O 3 catalysts prepared by different methods was determined by electrophoretic migration. These methods were designed to vary the extent of clustering (polymerization) in the solutions and on the wet catalysts. The combined use of electrophoretic migration and molybdenum extraction measurements showed that in alumina-supported molybdena catalysts with content below 14 wt%, molybdenum is present in both monolayer and multilayer forms over the entire range of molybdenum loading studied, irrespective of the method of catalyst preparation used.
ISSN:0021-9517
1090-2694
DOI:10.1016/0021-9517(84)90260-4