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研究了由分散法制备的两种CuCl／MCM－41 催化剂上丙烯在过量氧存在下选择催化还原NO反应，发现所制备的CuCl/AlMCM－41催化剂的反应活性明显高于CuCl／SiMCM－41．XRD，IR，TRR及ESR的研究结果表明，CuCl/AlMCM-41催化剂上的主要活性中心是与骨架铝配位的铜离子（Cu2+／Cu+）．
The selective catalytic reduction of NO over propylene in the presence of excess oxygen was investigated on two CuCl / MCM-41 catalysts prepared by the dispersion method. It was found that the prepared CuCl / AlMCM-41 catalyst exhibited significantly higher reactivity than CuCl / SiMCM-41. The results of XRD, IR, TRR and ESR show that the main active sites on the CuCl / AlMCM-41 catalyst are copper ions (Cu2 + / Cu +) coordinated with framework aluminum.