Influence of silicon on local structure and morphology of γ-FeOOH and α-FeOOH particles

被引：41

作者：

Kwon, Sang-Koo ^{[1
]}

Shinoda, Kozo ^{[1
]}

Suzuki, Shigeru ^{[1
]}

Waseda, Yoshio ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

CORROSION SCIENCE | 2007年 / 49卷 / 03期

基金：

日本学术振兴会;

关键词：

iron; steel; AFS; XRD; rust;

D O I：

10.1016/j.corsci.2006.07.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The extended X-ray absorption fine structure (EXAFS) method was used for investigating the local structures of lepidocrocite and goethite with and without silicon. The structure and morphology of these particles were investigated using X-ray diffraction and transmission electron microscopy, respectively. The bonding structure was examined by Fourier transform infrared spectroscopy (FT-IR). When silicon species was added, the structure and morphology changed while the linkage of FeO6 octahedral units was distorted. The FT-IR spectra revealed the formation of the FeO-Si bond in particles containing silicate ions, and the characteristic bond affects the local structure and morphology of the particles. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1513 / 1526

页数：14

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