A strong interaction between a metal oxide and support has long been indicative of its promotion of catalytic activities. In connection with this, we investigated the interaction of CuO with γ-Al 2 O 3 and CeO 2 for producing highly efficient catalysts for CO, C 3 H 6 , and NO abatement. In particular, the dispersion and thermal aging resistance of CuO clusters on different supports were studied. CuO clusters can be stabilized by interaction with CeO 2 , while on γ-Al 2 O 3 they aggregated into larger particles at high CuO loadings. On the other hand, due to the poor thermal stability of CeO 2 , CuO clusters dispersed on it were sintered during an aging treatment at 950 °C. Accordingly, by pre-dispersing CeO 2 on γ-Al 2 O 3 followed by CuO dispersion, stabilized CuO clusters were obtained that were based on the superior aging resistance of the γ-Al 2 O 3 support. Therefore, better catalytic performance and thermal aging properties were obtained with a CuO/CeO 2 /γ-Al 2 O 3 catalyst as compared with CuO/γ-Al 2 O 3 and CuO/CeO 2 samples. 以水合肼为还原剂, 采用硝酸 盐酸 硫酸及氮气或氢气氛处理的活性炭为催化剂, 考察了其催化硝基苯还原反应性能.结果表明, 经化学处理后, 活性炭表面形成了各种含氧官能团, 它们可引发水合肼分解, 并影响硝基苯的吸附. 活性炭表面形成的含氧官能团越多, 其催化硝基苯还原速率越快. 其中经盐酸处理的活性炭表面形成的含氧官能团最多, 因而表现出最高的硝基苯还原活性. Based on the surface interaction, CuO clusters are stable on CeO 2 with the increasing loading, while CuO/Al 2 O 3 has good thermal aging resistance. The CuO/CeO 2 /Al 2 O 3 catalyst obtained by pre-dispersing CeO 2 on Al 2 O 3 had both superior dispersion and thermal stability.