FORMATION AND CHARACTERIZATION OF DELTA-FE00H

被引：28

作者：

GOTIC, M ^{[1
]}

POPOVIC, S ^{[1
]}

MUSIC, S ^{[1
]}

机构：

[1] UNIV ZAGREB, FAC SCI, DEPT PHYS, ZAGREB 41001, CROATIA

来源：

MATERIALS LETTERS | 1994年 / 21卷 / 3-4期

关键词：

D O I：

10.1016/0167-577X(94)90192-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Formation of delta-FeOOH was investigated by varying the experimental conditions of its synthesis. Samples were characterized by X-ray diffraction, transmission electron microscopy and Fourier transform infrared spectroscopy. Strong alkalinity of the mother liquor was an important factor for delta-FeOOH formation via the Fe(OH)2 precursor. A small amount of Fe3+ ions, present in the Fe(OH)2 precursor before the rapid oxidation of Fe2+ ions with H2O2 solution, was not critical for the formation of delta-FeOOH as a single phase. The best crystallinity of delta-FeOOH was obtained when the synthesis was performed in a completely inert atmosphere. Transmission electron microscopy showed that delta-FeOOH particles were present in the form of thin plates. The FTIR spectra of the samples prepared are discussed.

引用

页码：289 / 295

页数：7

共 23 条

[1] NATURAL OCCURRENCE OF FEROXYHITE (SIGMA'-FEOOH) [J].