The reduction of metal (Fe3+ and Co2+)-exchanged A and X zeolites was studied by a temperature programmed reduction (TPR tecnique) in order to evaluate the reduction temperature of these samples. The study was been precedeed by a thermogravimetric analysis (TG-DTA) with the aim to define the temperature intervals which allow the investigated transformations to occur. In order to be able to study indetail the phases originating in the transformation of the zeolites lattice, X-ray diffractions were performed "in situ" with variable temperature and in the presence of a reducing gas (H2).

Characterization of zeolites exchanged with heavy metals as precursors of metal-ceramic composites / Turcato, Elisa Aurelia; Ronchetti, SILVIA MARIA; Onida, Barbara; Mazzza, D.; Rivolo, Paola; Esposito, S.; Ferone, C.. - STAMPA. - (2007), pp. 67-68. ((Intervento presentato al convegno National conference on science and technology of zeolites tenutosi a Turin nel July 1-4 2007.

Characterization of zeolites exchanged with heavy metals as precursors of metal-ceramic composites

TURCATO, Elisa Aurelia;RONCHETTI, SILVIA MARIA;ONIDA, BARBARA;RIVOLO, PAOLA;
2007

Abstract

The reduction of metal (Fe3+ and Co2+)-exchanged A and X zeolites was studied by a temperature programmed reduction (TPR tecnique) in order to evaluate the reduction temperature of these samples. The study was been precedeed by a thermogravimetric analysis (TG-DTA) with the aim to define the temperature intervals which allow the investigated transformations to occur. In order to be able to study indetail the phases originating in the transformation of the zeolites lattice, X-ray diffractions were performed "in situ" with variable temperature and in the presence of a reducing gas (H2).
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2645506
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