共沉淀法制备Fe_3O_4超微粉的X射线衍射研究  

X-ray Diffraction Study on Fe_3O_4 Ultrafine Powder Prepared by Co-precipitation Method

作　　者：刘平安[1] 程小苏[1] 税安泽[1] 王慧[1] 曾令可[1] 

机构地区：[1]华南理工大学材料学院,广东广州10640

出　　处：《分析测试学报》2008年第4期434-436,共3页Journal of Instrumental Analysis

基　　金：国家自然科学基金资助项目(50276017);华南理工大学基金资助项目(E5041340)

摘　　要：进行了用化学共沉淀法制备Fe3O4超微粉的研究,讨论了反应液浓度相同而Fe2+和Fe3+的比例不同以及Fe2+和Fe3+的比例相同而反应液浓度不同时对粉体的影响,并通过X射线衍射和透射电镜对超微粉样品进行了表征。当Fe2+/Fe3+的比值为1.125时得到较好的Fe3O4超微粉。The Fe3O4 ultrafine powder was prepared by co-precipitation method. The effects of different molar ratio of Fe^2＋ to Fe^3＋ under fixed concentration of the mixed solution of Fe^2＋ and Fe^3＋ , and the effects of different concentrations of the mixed solution under fixed molar ratio of Fe^2＋ to Fe^3＋ on the Fe3O4 uhrafine power were discussed and characterized by X-ray diffraction（XRD） and transmission electron mieroseope（TEM）. Fine Fe3O4 ultrafine powder were obtained when the molar ratio of Fe^2＋ to Fe^3＋ was 1. 125.

关 键 词：共沉淀法 FE3O4 超微粉 X射线衍射 

分 类 号：O766.3[理学—晶体学]