CuO/Ce_(1-x)Al_xO_2催化剂的制备及其催化性能研究

Synthesis of CuO/Ce_(1-x)Al_xO_2 Nanoparticles and Their Catalytic Performance

以硝酸盐为原料,氨水为沉淀剂,十六烷基溴化铵(CTAB)为模板,采用化学沉淀法合成介孔Ce1-x-Alx O2复合物,再用浸渍法制备CuO/Ce1-x Alx O2催化剂。利用X射线衍射和N2吸脱附表征催化剂的结构,结果显示催化剂为介孔立方萤石结构。采用H2-TPR评价其氧活性,O2-TPD和CO-TPD评价其吸附性能,以探索不同物质的量配比铈铝复合物对催化剂性能的影响。

The mesoporous Cel-xALO2 composite materials with crystalline pore walls and cubic fluorite struc- ture have been synthesized by chemical precipitation method using nitrate as raw materials, ammonia as precipitate and cetyltrimethylammonium bromide as template. Diverse CuO has been modified to this Cel-x AlxO2 composite materials by impregnation, H2-TPR evaluation its the oxygen activity and 02, CO-TPD evaluation its adsorption performance to explore the influencing of different molar ratio of cerium aluminum compounds on catalytic performance.