纳米磁性Mn_3O_4粉末的溶剂热法合成及表征  

Solvent-thermal Synthesis and Characterization of Magnetic Nanometer Mn_3O_4 Powder

作　　者：何秋星[1] 刘蕤[1] 陈权启 

机构地区：[1]韶关学院化学化工系,广东韶关512005 [2]株洲时代新材科技股份有限公司技术中心,湖南株洲412007

出　　处：《磁性材料及器件》2004年第4期23-26,共4页Journal of Magnetic Materials and Devices

摘　　要：以MnO2为主要原料,应用溶剂热法合成了纳米磁性Mn3O4粉体。研究和讨论了反应温度、填充度、溶剂种类、降温速率对产物性能的影响,得到溶剂热法制备纳米磁性Mn3O4的最佳条件。产物经XRD表征为单一相Mn3O4,经粒度分析仪及透射电镜(TEM)检测,为四方晶型,平均粒径为55nm。With manganese dioxide as the basic reaction raw material, the magnetic nanometer Mn3O4 powder was successfully prepared by solvent-thermal method. The affecting factors, including reaction temperature, factor of filling, the kind of solvents and the decreasing speed of temperature,were studied and the optimized reaction condition was determined. The product, examined by X-ray diffraction, particle-diffusion instrument and TEM, exhibits mono-phase Mn3O4 with the tetragonal structure and mean grain size of 55nm.

关 键 词：纳米Mn3O4 溶剂热法 比饱和磁化强度 微结构 

分 类 号：TM277.1[一般工业技术—材料科学与工程] TB383[电气工程—电工理论与新技术]