INTEQUI 20941
INSTITUTO DE INVESTIGACIONES EN TECNOLOGIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Iron Manganese mixed oxide catalysts for ethanol combustion. Influence of the Fe|Mn atomic ratio and the calcination temperature.
Autor/es:
DURAN FLAVIA; CADUS, LUIS E.; BARBERO BIBIANA P.
Revista:
LATIN AMERICAN APPLIED RESEARCH
Editorial:
PLAPIQUI(UNS-CONICET)
Referencias:
Lugar: Bahia Blanca; Año: 2011
ISSN:
0327-0793
Resumen:
A Fe-Mn mixed oxide catalyst for
ethanol combustion was optimized using different
Fe:Mn atomic ratios and varying the calcination
temperature (500ºC, 650ºC and 800ºC). The results
indicated that the increase of the calcination temperature
caused a decrease of the catalytic activity
due to a strong decrease of the specific surface area.
Then, among the catalysts calcined at 500ºC, the
most active one was the catalyst with lower amount
of iron. The results of X-ray diffraction (XRD) and
temperature programmed reduction (TPR) indicated
that a small amount of iron in the Fe-Mn mixed catalyst
favored the formation of dispersed surface
amorphous MnOx species. These species are easily
reducible and very active in total oxidation reactions.
