室温固相反应制备纳米KMn_8O_(16)粉体

Study on nanometer kMn_8O_(16) powder by solid state reaction at ambient temperature

采用固相氧化还原法合成了纳米 KMn8O16粉体 ,借助 XRD、SEM、FT- IR、比表面测定等技术对粉体进行了表征。结果表明 ,粉体外貌呈近球形 ,粒子大小均匀 ,团聚少 ,平均粒径约为 2 0 nm,对 H2 O2 分解具有较高的催化活性 ;制备过程中加入少量纳米 Cu

Nanometer KMn 8O 16 powder is prepared by solid state oxidation-reduction reaction at ambient temperature. The properties of the powder ore characterized by XRD,SEM,FFIR and surface area measurement techniques. The results show that the powder has an average diameter of 20 nm with spherelike and good dispersity and higher catalytic activity for H 2O 2 decomposition,whose properties could be improved while a little nanometer CuO is put into the reactive system.