用不同浓度的Cu、Ce和La离子交换Na Y分子筛,对比了不同改性条件下等离子体协同分解NO_x的性能.实验结果表明:Cu是NO_x催化分解的主要活性组分,对于8%Cu-Na Y催化剂,当放电电压为10 k V,放电功率为7.6 W时,NO_x转化率可达46.3%,反应产物中没有NO_2,只有11 ppm的N_2O.Ce的加入可以有效提高催化剂催化活性,对于5%Ce-8%Cu-NaY催化剂,当放电电压为7.8 kV,功率为3.6 W时,NO_x转化率可达67.3%.La的加入同样可以使催化剂活性上升,但不同La含量催化剂的NO_x转化率相差较小. The results show that Cu is the main active component of NO_x catalytic decomposition, and the effect of 8% Cu- Na Y catalyst, the NO_x conversion rate can reach 46.3% when the discharge voltage is 10 kV and the discharge power is 7.6 W. There is NO 2 in the reaction product and only 11 ppm N 2 O. The addition of Ce can effectively improve the catalytic activity of the catalyst, 5% Ce-8% Cu-NaY catalyst, the NO_x conversion reaches 67.3% at the discharge voltage of 7.8 kV and the power of 3.6 W. The addition of La can also increase the activity of the catalyst, but the conversion of NO_x Rate difference is smaller.