Artículo
Ni–Co Bimetallic Catalysts for Hydrogen Production by Steam Reforming Ethanol
Romero Castro, Leticia del Carmen
; Moreno, Mario Sergio Jesus
; Galetti, Agustin Esteban
; Barroso, Mariana Noelia
Fecha de publicación:
06/2022
Editorial:
Springer/Plenum Publishers
Revista:
Topics In Catalysis
ISSN:
1022-5528
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Ni–Co catalysts supported on MgAl2O4–CeO2 were prepared by the sol–gel method. The solids were calcined under a reducing atmosphere to obtain Ni and/or Co active sites. The influence of the cobalt content (1, 3 and 5% w/w) was studied on bimetallic catalysts containing 8% w/w of Ni. The catalysts were characterized by TG, FTIR, SBET, AAS, XRD, TPR, TEM, EELS, EFTEM, TPO and SEM. XRD patterns of the reduced samples did not reveal the presence of Ni nor Co, nor the possible formation of a metallic alloy, which suggests that metallic crystallite sizes are smaller than the detection limit of the technique (5 nm). The catalysts were evaluated in the ethanol steam reforming reaction at 650 °C for 7 h. The results showed that the catalytic activity and the H2 selectivity are favored in bimetallic catalysts. The main reaction products were H2, CO2, CO and, to a lesser amount, CH4, being the hydrogen selectivity being greater than 80%. The best behavior in terms of the activity, stability and tolerance to carbon deposition was observed in Co3Ni/MC system. These results suggest the existence of an optimal Co/Ni ratio in the sample whit 3 wt% Co and 8 wt% Ni.
Palabras clave:
BIMETALLIC CATALYSTS
,
CE–MGAL2O4
,
HYDROGEN
,
NI–CO
,
SOL–GEL METHOD
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Identificadores
Colecciones
Articulos (UE-INN - NODO BARILOCHE)
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO BARILOCHE
Articulos(INTEQUI)
Articulos de INST. DE INVEST. EN TECNOLOGIA QUIMICA
Articulos de INST. DE INVEST. EN TECNOLOGIA QUIMICA
Citación
Romero Castro, Leticia del Carmen; Moreno, Mario Sergio Jesus; Galetti, Agustin Esteban; Barroso, Mariana Noelia; Ni–Co Bimetallic Catalysts for Hydrogen Production by Steam Reforming Ethanol; Springer/Plenum Publishers; Topics In Catalysis; 65; 13-16; 6-2022; 1427-1439
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