Promoter Effect in Dry Methane Reforming of Ni/Actuvated Carbon Catalysts

Maibelin Rosales; Carlos Paredes; Juan Matos


The role of the metal promoters Ca, Mg, Cu and Zn in dry methane reforming on activated carbon (AC)-supported nickel-based catalysts has been studied. The catalytic activities were performed in a fixed-bed reactor under mild conditions (650ºC, 1atm). The catalysts were characterized by N2 adsorption-desorption isotherms, XRD, FTIR and XPS before and after reaction. It was observed that Ni-Mg/AC catalyst showed the highest initial catalytic activity, followed by Ni-Ca/AC catalyst. This can be ascribed to a very well-known effect where Lewis bases as MgO or CaO stabilize Ni-based catalysts [1,2], improving the dispersion of nickel species on the AC during dry methane reforming reactions.

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Editorial: Carbon 2011
Fecha de publicación: 2011
Año de Inicio/Término: 25-29 July 2011
Página de inicio: 237
Página final: 238
Idioma: English