中文摘要：

采用回流法合成了氧化锰八面体分子筛（OMS-2），并以OMS-2为载体使用前掺杂法和浸渍法制备了负载型Cu／OMS-2催化剂，并对所制催化剂进行x射线衍射（XRD）分析和N2吸附／脱附结构表征。同时研究了制备方法和cu负载量对Cu／OMS-2催化氧化性能的影响。结果表明，OMS-2为典型的隧道结构，适量负载cu使OMS-2载体分子筛的结构有所改善。负载型Cu／OMS-2的催化活性明显优于OMS-2载体，前掺杂法制备的Cu／OMS-2-PI催化剂的催化活性明显优于浸渍法制备的Cu／OMS-2-IM，这可能是Cu进入OMS-2晶格、Cu与OMS-2载体之间存在强相互作用有关。Cu负载量明显影响Cu／OMS-2-PI催化剂的催化活性，5Cu／OMS-2-PI催化剂（Cu质量分数5．0％）催化活性最高，这是由于适当cu负载量催化剂中cu颗粒较小，而且进入OMS-2晶格中的Cu与载体相互作用较强，能较好地活化催化剂中的氧物种，使OMS-2对CO的催化氧化性能明显增强。

英文摘要：

The manganese oxide octahedral molecular sieves （OMS-2） sample was synthesized by the reduction of KMnO4 under acidic conditions followed by reflux. The obtained OMS-2 material was used as carries to prepare Cu doped OMS-2 （Cu/OMS-2） through pre-incorporation method and traditional impregnation method. The structure of Cu/OMS-2 catalysts was characterized by X-ray diffraction and Nz adsorption/desorption analyses. The effect of preparation method and Cu loading quantity on catalytic activity of Cu/OMS-2 was deduced. The results showed that the OMS-2 have a typical cryptomelane structure with one-dimensional channel. The doping of Cu resulted in a higher specific surface area and narrower pore size distribution,its catalytic activity for CO oxidation was increased after Cu introduction. Cu doped OMS-2 prepared by pre-incorporation method （Cu/OMS-2-PI） presented superior catalytic ac-tivity than traditional impregnation prepared catalyst （Cu/OMS-2-IM）,this might be caused by the strong interaction between Cu and carrier. Cu loading quantity significantly affected the performance of Cu/OMS-2-PI,and 5Cu/OMS-2- PI （mass fraetion of Cu was 5 %） achieved the best catalytic activity, which was due to the small size of Cu particle and stronger interaction between carrier and Cu in OMS-2 lattice. Cu could significantly enhance the CO adsorption properties and lattice oxygen diffusion eapacity of OMS-2, and further improved the catalytic ability of catalysts for CO oxidation.