微波固相合成纳米铜锰复合氧化物及表征  

Preparation and Characterization of Cu-Mn Complex Oxidesby Solid-state Reaction under Microwave Radiation

作　　者：李海霞[1] 李大光[1] 李铁虎[2] 谭长水[1] 

机构地区：[1]广东工业大学轻工化工学院,广东广州510090 [2]西北工业大学材料科学与工程系,陕西西安710072

出　　处：《江苏化工》2004年第3期26-28,共3页Jiangsu Chemical Industry

基　　金：广东省工业攻关项目(030084);广东省教育厅基金项目(020078)

摘　　要：采用室温微波固相合成法制备了纳米级铜锰复合氧化物,微波加热大大缩短了传统低温固相热分解的时间;用XRD谱、TEM和IR等测试手段对前驱物和产物的物相及微观结构进行了表征,找出了影响微波固相合成铜锰复合氧化物的主要因素。在微波辐射功率为540W、微波辐射时间为10min、热分解温度为350℃、分解时间为2h的条件下制备铜锰复合纳米氧化物,测试结果表明,其产物属立方晶型,粒径主要在20～50nm范围。Cu-Mn complex oxides nanometer powder is prepared by solid-phase reaction at room temperature under the radiation of microwave, and the time of thermal decomposition is reduced significantly by the microwave radiation than by traditional solid-phase reaction. The crystal structure and microstructure of the fine powders and precursors were analyzed by use of XRD, TEM and IR, and the main impact factor of preparation is found. Under the optimum reaction conditions (microwave power 540 W, radiation time 10 min, thermal decomposition temperature 350 ℃, decomposition time 2 h), nanopowders prepared with the particle size of 20～50 nm were cubic crystal.

关 键 词：室温固相合成法 纳米粉体 铜锰复合氧化物 前驱物 

分 类 号：TQ139[化学工程—无机化工] TB383[一般工业技术—材料科学与工程]