用共沉淀法制备了BaCO3修饰的NiO和Co3O4,用于N2O分解反应的催化剂.研究发现,有最佳组成的BaCo6催化剂比BaxNi6(x=0~2)催化剂活性更高.对于BaCo6催化剂,加入了适量作为黏结剂的勃姆石以增加催化剂的力学强度.所得BaCo6Al2.3催化剂,既有很好的力学强度又有较高的催化活性.在450℃,该BaCo6Al2.3催化剂在含0.2%N2O、5%O2、2%H2O、0.01%NO的Ar气氛中,表现出非常稳定的催化活性. BaCo6 catalysts with the best composition were more active than those of BaxNi6 (x = 0 ~ 2) catalysts prepared by coprecipitation method for the NiO and Co3O4 modified by BaCO3 for the N2O decomposition reaction.For BaCo6 catalysts, An appropriate amount of boehmite as a binder to increase the mechanical strength of the catalyst obtained BaCo6Al2.3 catalyst, both good mechanical strength and high catalytic activity of the BaCo6Al2.3 catalyst at 450 ℃ containing 0.2% N2O, 5% O2, 2% H2O, 0.01% NO in Ar atmosphere, showing a very stable catalytic activity.