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CeO_2 was synthesized via sol-gel process and used as supporter to prepare CuO/CeO_2, Cu/CeO_2 catalysts by impregnation method. The catalytic properties and characterization of CeO_2, CuO/CeO_2 and Cu/CeO_2 catalysts were examined by means of a microreactor-GC system, HRTEM, XRD, TPR and XPS techniques. The results show that CuO has not catalytic activity and the activity of CeO_2 is quite low for CO oxidation. However, the catalytic activity of CuO/CeO_2 and Cu/CeO_2 catalysts increases significantly. Furthermore, the activity of CuO/CeO_2 is higher than that of Cu/CeO_2 catalysts.
CeO_2 was synthesized via sol-gel process and used as supporter to prepare CuO / CeO_2, Cu / CeO_2 catalysts by impregnation method. The catalytic properties and characterization of CeO_2, CuO / CeO_2 and Cu / CeO_2 catalysts were examined by means of a microreactor- The results show that CuO has not catalytic activity and the activity of CeO 2 is quite low for CO oxidation. However, the catalytic activity of CuO / CeO 2 and Cu / CeO 2 catalysts shows significantly. Furthermore, the activity of CuO / CeO 2 is higher than that of Cu / CeO 2 catalysts.