Characterization of Ni-Cu-based catalysts for multi-fuel steam reformer

摘要

Low-temperature methane and methanol steam-reforming catalysts Ni/Al_2O_3, Cu/Al_2O_3 and Ni-Cu/ Al_2O_3 with various loadings of Ni and Cu were prepared using a wet impregnation method. The samples were characterized using scanning electron microscope, surface area (BET) test, X-ray diffraction (XRD), infrared test, CO chemisorption test and temperature-programmed reduction tests. XRD testing showed that NiO and CuO were present. Ni-Cu-alloyed catalyst shows a significant change in the catalyst characteristics compared with those of individual metals. The results presented in this paper show the main changes in the catalyst properties using ex situ testing.