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Titolo:
Synthesis and characterization of gallium-beta zeolite from fluoride-containing media
Autore:
Hazm, JE; Caullet, P; Paillaud, JL; Soulard, M; Delmotte, L;
Indirizzi:
Univ Haute Alasace, Lab Mat Mineraux, UPRESA 7016, ENSCMu,UHA, F-68093 Mulhouse, France Univ Haute Alasace Mulhouse France F-68093 UHA, F-68093 Mulhouse, France Univ Sidi Mohammed Ben Abdellah, Fac Sci & Tech Fes Saiss, Fes, Morocco Univ Sidi Mohammed Ben Abdellah Fes Morocco ech Fes Saiss, Fes, Morocco
Titolo Testata:
MICROPOROUS AND MESOPOROUS MATERIALS
fascicolo: 1, volume: 43, anno: 2001,
pagine: 11 - 25
SICI:
1387-1811(200103)43:1<11:SACOGZ>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-SIEVE; COMPLEXES; FRAMEWORK; IONS; GELS;
Keywords:
beta zeolite; gallosilicate; fluoride media; synthesis; solid state NMR spectroscopy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Caullet, P Univ Haute Alasace, Lab Mat Mineraux, UPRESA 7016, ENSCMu,UHA, 3 Rue Alfred Werner, F-68093 Mulhouse, France Univ Haute Alasace 3 Rue Alfred Werner Mulhouse France F-68093
Citazione:
J.E. Hazm et al., "Synthesis and characterization of gallium-beta zeolite from fluoride-containing media", MICROP M M, 43(1), 2001, pp. 11-25

Abstract

A gallosilicate beta zeolite was prepared in the 150-200 degreesC temperature range in the presence of the tetraethylammonium cation as the structuring agent from almost neutral fluoride-containing aqueous gels having Si/Ga ratios between 5 and infinity. Pure and Fully crystallized beta samples could only be obtained from the gels with Si/Ga molar ratios higher than or equal to 20. The samples of zeolite beta were characterized by the usual techniques, i.e, powder XRD, SEM, chemical analysis, thermal analysis, N-2 adsorption isotherms and Si-29, Ga-71, F-19 and C-13 NMR spectroscopy. (C) 2001Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 13:08:18