Preparation of Ultrafine α-Fe_2O_3 Powder by Homogeneous Precipitation Method

LIU Shu-xin1,WANG Hai-bin1,HUO Ji-chuan2,LV Shu-zhen2,YANG Ding-ming2(1.Department of Chemistry and Chemical Engineering,Mianyang Normal University,Mianyang 621000,China;2.Institute of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China)  

Ultrafine α-Fe2O3 powder were synthesized by homogenous precipitation method with the CO(NH2)2 as uniformity precipitation reagent and the FeCl3 as iron source.The calcinations temperature of the precursor was determined by TGA/SDTA.The crystal structure,shape and size of the ultrafine α-Fe2O3 were investigated by means of X-ray powder diffraction and electron microscope.The results show that the product was α-Fe2O3,the average size of the powder was about 0.2 μm and the powder was well dispersed.The principle of preparation of ultrafine α-Fe2O3 powder by homogenous precipitation reaction was discussed.

【Fund】： 四川省教育厅资助科研项目(No.2006A139);; 四川省科技厅资助科研项目(No.2006J13-034);; 绵阳师范学院资助科研项目(No.MA2006004)
【CateGory Index】： TB383.1

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