Artículos de revistas
Cu/MnOxeCeO2 and Ni/MnOxeCeO2 catalysts for the water-gas shift reaction: Metal-support interaction
Fecha
2014-05-27Registro en:
Poggio Fraccari, Eduardo Arístides; Sambeth, Jorge Enrique; Baronetti, Graciela Teresita; Mariño, Fernando Javier; Cu/MnOxeCeO2 and Ni/MnOxeCeO2 catalysts for the water-gas shift reaction: Metal-support interaction; Pergamon-elsevier Science Ltd; International Journal Of Hydrogen Energy; 39; 16; 27-5-2014; 8675-8681
0360-3199
Autor
Poggio Fraccari, Eduardo Arístides
Sambeth, Jorge Enrique
Baronetti, Graciela Teresita
Mariño, Fernando Javier
Resumen
Monometallic copper and nickel catalysts supported on cerium-manganese mixed oxides are prepared, characterized and evaluated for the WatereGas Shift (WGS) reaction. Active metal loading of 2.5 wt% and 7.5 wt% are used to impregnate MnOxeCeO2 supports with 30% and 50% Mn:Ce molar ratio. The structure of the samples strongly depends on both the active metal employed and the manganese content in the mixed support. For both Cu and Ni samples, the best catalytic behavior is found in samples supported on the MnOxeCeO2 oxides with 30% Mn:Ce molar ratio, as a result of the presence of CuxMnyO4 spinel-type phases in the case of copper catalysts and the presence of a NiMnO3 mixed oxide with defect ilmenite structure in the case of nickel catalysts.