Local probes show that framework modification in zeolites occurs on ammonium exchange without calcination

Framework modification involving a change in the Al environment from tetrahedral to octahedral is frequently reported in ammonium-exchanged zeolites after calcination, steaming, acid wash and other harsh treatments. We characterized Na-Y and partially exchanged NH4-Y zeolites by spectroscopic and di...

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Autors principals: Sartbaeva, A, Rees, N, Edwards, P, Ramirez-Cuesta, A, Barney, E
Format: Journal article
Idioma:English
Publicat: 2013