Article ID Journal Published Year Pages File Type
9617766 Microporous and Mesoporous Materials 2005 4 Pages PDF
Abstract
Mo/Ze catalysts prepared by incipient wetness impregnation of a Faujasite zeolite with ammonium heptamolybdate solutions have been characterized after calcination at 500 °C and transfer in wet atmosphere. Raman spectroscopy clearly evidences the formation of [SiMo12O40]4− heteropolyanions. This formation, through extraction of Si atoms, is not observed before the calcination, the Anderson [AlMo6O24H6]3− entity being the main species formed during the impregnation-maturation.
Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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