Magnetic α-Fe_2O_3,γ-Fe_2O_3 and Fe_3O_4 Prepared by Facile Calcination from K_4[Fe(CN)_6]  

作　　者：李国平 吴梅华 李飞明 翁文 

机构地区：[1]College of Chemistry and Environment, Minnan Normal University

出　　处：《Chinese Journal of Structural Chemistry》2015年第12期1935-1938,共4页结构化学（英文）

基　　金：supported by the Funds of Fujian province department of education(No.JA14199)

摘　　要：Magnetic a-Fe2O3, γ-Fe2O3 and Fe3O4 were prepared by facile calcination under different temperature from K4[Fe（CN）6] as raw materials, in which the calcined products are a-Fe2O3, Fe3O4 and y-Fe203 at 400 or 700, 500, and 600 ℃, respectively. The as-prepared compounds were characterized by X-ray powder diffraction and scanning electron microscopy, and their magnetic behavior at room temperature was also studied. This method provided a simple approach to prepare different polymorphic forms of magnetic iron oxides, which may have potential applications in magnetic science, magnetic composite materials, magnetic core, magnetic separation and medical diagnostics.Magnetic a-Fe2O3, γ-Fe2O3 and Fe3O4 were prepared by facile calcination under different temperature from K4[Fe（CN）6] as raw materials, in which the calcined products are a-Fe2O3, Fe3O4 and y-Fe203 at 400 or 700, 500, and 600 ℃, respectively. The as-prepared compounds were characterized by X-ray powder diffraction and scanning electron microscopy, and their magnetic behavior at room temperature was also studied. This method provided a simple approach to prepare different polymorphic forms of magnetic iron oxides, which may have potential applications in magnetic science, magnetic composite materials, magnetic core, magnetic separation and medical diagnostics.

关 键 词：iron oxides MAGNETIC CALCINATIONS K4[Fe（CN）6] 

分 类 号：TQ138.11[化学工程—无机化工] TB383[一般工业技术—材料科学与工程]