Deactivation Behavior of CuXCe1-XO2-X/SBA-15/Cordierite Monolithic Catalysts for Catalytic Combustion of CO
2012 ◽
Vol 550-553
◽
pp. 383-387
◽
Keyword(s):
X Ray
◽
A series of CuxCe1-xO2-x/SBA-15/cordierite (x = 0-1) catalysts were prepared. The activity of the catalysts for CO combustion was evaluated. The catalysts were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, and X-ray photoelectron spectroscopy (XPS). Deactivation behavior of the catalysts for the catalytic combustion of CO was investigated. The results show that all of the catalysts retained the SBA-15 mesoporous structure. It is proposed that deactivation of the catalysts is associated with the increase of the Cu+ and the decrease of the Cu2+ in the catalysts.