Ricerca: Classificazione Dewey = 338.4791 (IT/ItRC/AUTHD/00001190)
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Tipo: Documento elettronico, Risorsa analitica
É capitolo di: Scientific Bases for the Preparation of Heterogeneous Catalysts, Proceedings of the 9th International Symposium Louvain-la-Neuve, Belgium 10-14 September 2006
Titolo: Preparation of Pto/MCM-41: effect of drying on MCM-41 structure and Pto dispersion
Pubblicazione: Elsevier, ©2006
Descrizione fisica: 449-456
Titolo uniforme: Scientific Bases for the Preparation of Heterogeneous Catalysts, Proceedings of the 9th International Symposium Louvain-la-Neuve, Belgium 10-14 September 2006
Sommario o abstract: Pto/MCM-41 catalysts were prepared by electrostatic adsorption of Pt(NH3)42+ at pH=8, followed by calcination under O2 and reduction. This procedure allows to prepare highly dispersed Pto nanoparticles (D>76%), but has the drawback to modify significantly the structure of the ordered mesoporous support during the washing-drying step (decrease of the average pore diameter of ca. 10and of the surface area of ca. 30%). In order to circumvent this problem, various washing-drying procedures were investigated. Washing with ethanol followed by drying under vacuum at 30¦C was shown to be the most appropriate procedure since it allows to preserve the structure of the support and the high dispersion of the metallic phase
Altre responsabilità: Baichun Zhu
Franck Letellier
Juliette Blanchard
Katia Fajerwerg
Catherine Louis
vedi tutte le altre responsabilità
Lingua della pubblicazione: Inglese
Codice identificativo: IT/ItRC/00017053
data di importazione: 01-01-2014
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