CuO/CeO2 catalysts were prepared by impregnating a commercial CeO2 support (SBET = 11.1 m2 g-1) with an aqueous solution of Cu(CH3COO)2, Cu(NO3)2, CuCl2, or CuSO4 to obtain a Cu loading of 10 wt.%. The CeO2 support was pre-treated at 120 degC for 4 h before use to remove the impurity adsorbed on the surface. After being impregnated quiescently at room temperature (RT) for 24 h, the sample was dried at 90 degC for 24 h, followed by calcination in static air at 500 or 800 degC for 4 h.
CeO2 support
SBET
11.1 m2 g-1
m2 g-1
CuO/CeO2 catalysts
Cu loading
10 wt.%
wt.%
CeO2 support
pre-treated
120 degC
degC
CeO2 support
pre-treated
4 h
h
sample
calcination
500 or 800 degC
degC
sample
calcination
4 h
h
sample
dried
90 degC
degC
sample
impregnated
24 h
h
sample
dried
24 h
h