Synthesis of acicular α-FeOOH particles at a very high pH

被引：114

作者：

Krehula, S

Popovic, S

Music, S

机构：

[1] Rudjer Boskovic Inst, Div Mat Chem, Zagreb 10002, Croatia

[2] Univ Zagreb, Fac Sci, Dept Phys, Zagreb 10002, Croatia

来源：

MATERIALS LETTERS | 2002年 / 54卷 / 2-3期

关键词：

goethite; (alpha-FeOOH) tetramethylammonium hydroxide; acicular particles; XRD; FT-IR; TEM; FeOOH goethite;

D O I：

10.1016/S0167-577X(01)00546-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The acicular alpha-FeOOH particles were synthesized from FeCl3 solutions at a very high pH using tetramethylammonium hydroxide as a precipitating agent. Samples were characterized by X-ray powder diffraction, FT-IR spectroscopy and transmission electron microscopy, alpha-FeOOH precipitated as a single phase from room temperature to 160 degreesC in a broad aging time interval. The ratio of the length to the width of alpha-FeOOH particles depended on the temperature and concentration of the starting FeCl3 solution, Multidomainic character of alpha-FeOOH particles gradually decreased with an increase in the temperature and time of aging. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：108 / 113

页数：6

共 22 条

[1] INFRARED STUDY OF GOETHITES OF VARYING CRYSTALLINITY AND PARTICLE-SIZE .1. INTERPRETATION OF OH AND LATTICE VIBRATION FREQUENCIES [J].