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以高比表面多孔型SiO2（比表面大于1000m2／g）为载体，用等体积浸渍法制得表面修饰钴的SiO2复合体．经XRD、电子能谱、TEM检测发现表面修饰组分钴在SiO2表面均匀担载，且复合体在丙烯还原一氧化氮的反应中表现出良好的催化活性．
The surface modified cobalt complex SiO2 was prepared by the same volume impregnation method with high surface area porous SiO2 (specific surface area greater than 1000 m2 / g) as carrier. The XRD, EDS and TEM results showed that the surface-modified cobalt was uniformly supported on the surface of SiO2, and the complex showed good catalytic activity in the reaction of propylene with nitrogen monoxide.