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

Sang Koo Kwon; Kozo Shinoda; Shigeru Suzuki; Yoshio Waseda

doi:10.1016/j.corsci.2006.07.004

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

Sang Koo Kwon, Kozo Shinoda, Shigeru Suzuki, Yoshio Waseda

Tohoku University

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

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 Fe-O-Si bond in particles containing silicate ions, and the characteristic bond affects the local structure and morphology of the particles.

Original language	English
Pages (from-to)	1513-1526
Number of pages	14
Journal	Corrosion Science
Volume	49
Issue number	3
DOIs	https://doi.org/10.1016/j.corsci.2006.07.004
Publication status	Published - 2007 Mar

Keywords

A. Iron
A. Steel
B. AFS
B. XRD
C. Rust

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10.1016/j.corsci.2006.07.004

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title = "Influence of silicon on local structure and morphology of γ-FeOOH and α-FeOOH particles",

abstract = "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 Fe-O-Si bond in particles containing silicate ions, and the characteristic bond affects the local structure and morphology of the particles.",

keywords = "A. Iron, A. Steel, B. AFS, B. XRD, C. Rust",

author = "Kwon, {Sang Koo} and Kozo Shinoda and Shigeru Suzuki and Yoshio Waseda",

note = "Funding Information: The authors wish to express their gratitude to Prof. E. Matsubara, Prof. A. Muramatsu, Dr. Kanie, and Dr. K. Kimijima for their valuable discussions. This study was supported by a Grant-in-Aid for Scientific Research Fund from the Japan Society for Promotion of Science (No. 17206075) and the Grant of the Iron and Steel Institute of Japan.",

year = "2007",

month = mar,

doi = "10.1016/j.corsci.2006.07.004",

language = "English",

volume = "49",

pages = "1513--1526",

journal = "Corrosion Science",

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AU - Kwon, Sang Koo

AU - Shinoda, Kozo

AU - Suzuki, Shigeru

AU - Waseda, Yoshio

N1 - Funding Information: The authors wish to express their gratitude to Prof. E. Matsubara, Prof. A. Muramatsu, Dr. Kanie, and Dr. K. Kimijima for their valuable discussions. This study was supported by a Grant-in-Aid for Scientific Research Fund from the Japan Society for Promotion of Science (No. 17206075) and the Grant of the Iron and Steel Institute of Japan.

PY - 2007/3

Y1 - 2007/3

N2 - 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 Fe-O-Si bond in particles containing silicate ions, and the characteristic bond affects the local structure and morphology of the particles.

AB - 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 Fe-O-Si bond in particles containing silicate ions, and the characteristic bond affects the local structure and morphology of the particles.

KW - A. Iron

KW - A. Steel

KW - B. AFS

KW - B. XRD

KW - C. Rust

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SN - 0010-938X

VL - 49

SP - 1513

EP - 1526

JO - Corrosion Science

JF - Corrosion Science

IS - 3

ER -

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

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Keywords

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