IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Synthesis and characterization of metal mixed oxides from
Autor/es:
BALSAMO, N; MENDIETA S; OLIVA, M.I.; EIMER, G. A.; CRIVELLO, M. E.
Lugar:
Rosario
Reunión:
Congreso; 11º Congreso Binacional de Metalurgia y Materiales SAM / CONAMET 2011; 2011
Resumen:
This work reports the synthesis and characterization of metal mixed oxides (MMOxs) obtained from precursors like
Layered Double Hydroxides (LDHs). These materials were synthesized with two hydroxides of Mg-Al with the
incorporation of mono, di and trivalent metal ions, such as Li, K, Ca, Ba, Ce, and La. The third metal incorporation took
place through two different ways: the direct incorporation by the co-precipitation method and the incorporation through
the impregnation of the mixed oxides by the wet impregnation method. All materials were characterized by XRD, SEMEDX
and specific surface area. The samples synthesized by both methods show the characteristic structure from the LDHs
compounds derived and the third metal incorporated. However MMOxs obtained by co-precipitation method showed
higher specific surface area and smaller particle size.