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

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

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纺锤形α-Fe₂O₃粒子的溶液催化合成

张秀丽，刘辉，魏雨*，马子川

(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

(College of Chemistry, Hebei Normal University, Shijiazhuang 050016)

Received:2004-07-14 Revised:2005-02-24 Published:2010-12-10
Contact: WEI Yu

Abstract

Spindle-type ultrafine α-Fe₂O₃particles 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, Fe^2＋ ion, phase transformation, catalysis

Cite this article

ZHANG Xiu-Li, LIU Hui, WEI Yu*, MA Zi-Chuan. Catalytic Synthesis of Spindle-type α-Fe₂O₃ Particles in Solution[J]. Acta Chimica Sinica, 2005, 63(12): 1141-1146.

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纺锤形α-Fe₂O₃粒子的溶液催化合成

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

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纺锤形α-Fe2O3粒子的溶液催化合成