Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (12): 1141-1146. Previous Articles     Next Articles




  1. (河北师范大学化学与材料科学学院 石家庄 050016)
  • 投稿日期:2004-07-14 修回日期:2005-02-24 发布日期:2010-12-10
  • 通讯作者: 魏雨

Catalytic Synthesis of Spindle-type α-Fe2O3 Particles in Solution

ZHANG Xiu-Li, LIU Hui, WEI Yu*, MA Zi-Chuan   

  1. (College of Chemistry, Hebei Normal University, Shijiazhuang 050016)
  • Received:2004-07-14 Revised:2005-02-24 Published:2010-12-10
  • Contact: WEI Yu

Spindle-type ultrafine α-Fe2O3 particles were directly synthesized at pH=4~7 under the conditions of boiling reflux in a short time. In this method, Fe2(SO4)3 was used as raw material, NaH2PO4 as growth-regulating agent and trace FeSO4 as catalyst. Compared to the forced hydrolysis method and hydrothermal synthesis, the proposed method was of characteristics of simple operation, high concentration, mild reaction condition, good reproducibility, etc. All kinds of factors that might affect the aspect ratios and phase transformation rate of spindle-type α-Fe2O3 were studied.

Key words: spindle-type α-Fe2O3, preparation, Fe2+ ion, phase transformation, catalysis