MnFe_2O_4纳米晶体的制备及表征  

The Synthesis of MnFe_2O_4 Nanocrystals and Their Characterization

作　　者：王秀宇[1] 杨桂琴[1] 严乐美[1] 孟建华[1] 孙艺环[1] 

机构地区：[1]天津大学理学院,天津300072

出　　处：《化学工业与工程》2004年第2期84-86,90,共4页Chemical Industry and Engineering

摘　　要：本文分别采用低温共沉淀法、高温法和水热法制备MnFe2O4的纳米晶体。利用XRD、TEM和VSM对试样进行了表征。重点研究了低温共沉淀法的制备方法。通过对三种方法的对比分析,试验结果表明低温共沉淀法适宜制备小粒径的MnFe2O4。MnFe_2O_4 nanocrystals were prepared by low-temperature coprecipitation method,high temperature method and hydrothermal method respectively.And the samples obtained by the three methods were characterized by XRD,TEM and VSM.The preparation for MnFe_2O_4 nanocrystals using precursor with low-temperature coprecipitation method was studied in detail.Comparison and analysis of the three methods indicated that low-temperature coprecipitation method was optimal in the preparation of pure samples with small size.

关 键 词：低温共沉淀法 尖晶石 纳米晶体MnFe2O4 

分 类 号：O614.7[理学—无机化学]