Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9617766 | Microporous and Mesoporous Materials | 2005 | 4 Pages |
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]4â heteropolyanions. This formation, through extraction of Si atoms, is not observed before the calcination, the Anderson [AlMo6O24H6]3â entity being the main species formed during the impregnation-maturation.
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Authors
Guillaume Plazenet, Catherine Martin, Edmond Payen, Bernadette Rebours, John Lynch,