Development of robust Co-based catalysts for the selective H-2-production by ethanol steam-reforming. The Fe-promoter effect

作者：de la Pena O'Shea Victor A; Nafria Raquel; Ramirez de la Piscina Pilar; Homs Narcis^*

来源：International Journal of Hydrogen Energy, 2008, 33(13): 3601-3606.

DOI：10.1016/j.ijhydene.2007.10.049

• ethanol steam-reforming
• in situ techniques
• hydrogen production
• cobalt catalysts
• iron catalysts

The effect of iron promoter on cobalt-based catalysts, active in the ethanol steam-reforming, was studied. FexCo3-xO4(0 <= x <= 0.60) oxides prepared by co-precipitation and an Fe-doped Co3O4 prepared by wetness impregnation are analysed. The activation process of the oxides under reaction conditions was studied by in situ X-ray diffraction (XRD); the activation depended on the iron content of the oxides. The systems were characterized by means of temperature programmed reduction (TPR), XRD and tested in the ethanol steam-reforming reaction at 623-673K. An optimal iron loading that gives rise to a high H-2 selectivity and catalyst stability was determined.

• 出版日期2008-7