Changes in chemical state and local structure of green rust by addition of copper sulphate ions

S. Suzuki; K. Shinoda; M. Sato; S. Fujimoto; M. Yamashita; H. Konishi; T. Doi; T. Kamimura; K. Inoue; Y. Waseda

doi:10.1016/j.corsci.2008.02.022

Changes in chemical state and local structure of green rust by addition of copper sulphate ions

S. Suzuki, K. Shinoda, M. Sato, S. Fujimoto, M. Yamashita, H. Konishi, T. Doi, T. Kamimura, K. Inoue, Y. Waseda

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

21 Citations (Scopus)

Abstract

The X-ray absorption near edge structure (XANES), the extended X-ray absorption fine structure (EXAFS) and X-ray diffraction (XRD) measurements were used for characterising the effect of the addition of copper sulphate ions on the chemical state and local structure of hydrosulphate green rust (GR). Fe K edge XANES spectra showed that Fe(II) in GR was partially oxidised by the addition of the copper sulphate solution. Cu K edge XANES spectra showed that the copper sulphate ions in the GR suspension were reduced to zero charge copper. Radial structural functions indicated that the structure of GR comprised edge sharing of FeO₆ octahedral units, which was changed by the oxidation of Fe(II). In addition, it was found that the GR was partially oxidised to α-FeOOH by the addition of copper ions.

Original language	English
Pages (from-to)	1761-1765
Number of pages	5
Journal	Corrosion Science
Volume	50
Issue number	6
DOIs	https://doi.org/10.1016/j.corsci.2008.02.022
Publication status	Published - 2008 Jun

Keywords

A. Copper
A. Iron
A. Steel
B. XRD
C. Atmospheric corrosion

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2008.02.022

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@article{befaee40e2234df9823276357f9de845,

title = "Changes in chemical state and local structure of green rust by addition of copper sulphate ions",

abstract = "The X-ray absorption near edge structure (XANES), the extended X-ray absorption fine structure (EXAFS) and X-ray diffraction (XRD) measurements were used for characterising the effect of the addition of copper sulphate ions on the chemical state and local structure of hydrosulphate green rust (GR). Fe K edge XANES spectra showed that Fe(II) in GR was partially oxidised by the addition of the copper sulphate solution. Cu K edge XANES spectra showed that the copper sulphate ions in the GR suspension were reduced to zero charge copper. Radial structural functions indicated that the structure of GR comprised edge sharing of FeO6 octahedral units, which was changed by the oxidation of Fe(II). In addition, it was found that the GR was partially oxidised to α-FeOOH by the addition of copper ions.",

keywords = "A. Copper, A. Iron, A. Steel, B. XRD, C. Atmospheric corrosion",

author = "S. Suzuki and K. Shinoda and M. Sato and S. Fujimoto and M. Yamashita and H. Konishi and T. Doi and T. Kamimura and K. Inoue and Y. Waseda",

note = "Funding Information: The authors would like to express their gratitude to Dr. T. Hashimoto for valuable discussions. This work was supported by a Grant-in-Aid for Scientific Research Fund from the Japan Society for the Promotion of Science and the Japan Society of Corrosion Engineering.",

year = "2008",

month = jun,

doi = "10.1016/j.corsci.2008.02.022",

language = "English",

volume = "50",

pages = "1761--1765",

journal = "Corrosion Science",

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T1 - Changes in chemical state and local structure of green rust by addition of copper sulphate ions

AU - Suzuki, S.

AU - Shinoda, K.

AU - Sato, M.

AU - Fujimoto, S.

AU - Yamashita, M.

AU - Konishi, H.

AU - Doi, T.

AU - Kamimura, T.

AU - Inoue, K.

AU - Waseda, Y.

N1 - Funding Information: The authors would like to express their gratitude to Dr. T. Hashimoto for valuable discussions. This work was supported by a Grant-in-Aid for Scientific Research Fund from the Japan Society for the Promotion of Science and the Japan Society of Corrosion Engineering.

PY - 2008/6

Y1 - 2008/6

N2 - The X-ray absorption near edge structure (XANES), the extended X-ray absorption fine structure (EXAFS) and X-ray diffraction (XRD) measurements were used for characterising the effect of the addition of copper sulphate ions on the chemical state and local structure of hydrosulphate green rust (GR). Fe K edge XANES spectra showed that Fe(II) in GR was partially oxidised by the addition of the copper sulphate solution. Cu K edge XANES spectra showed that the copper sulphate ions in the GR suspension were reduced to zero charge copper. Radial structural functions indicated that the structure of GR comprised edge sharing of FeO6 octahedral units, which was changed by the oxidation of Fe(II). In addition, it was found that the GR was partially oxidised to α-FeOOH by the addition of copper ions.

AB - The X-ray absorption near edge structure (XANES), the extended X-ray absorption fine structure (EXAFS) and X-ray diffraction (XRD) measurements were used for characterising the effect of the addition of copper sulphate ions on the chemical state and local structure of hydrosulphate green rust (GR). Fe K edge XANES spectra showed that Fe(II) in GR was partially oxidised by the addition of the copper sulphate solution. Cu K edge XANES spectra showed that the copper sulphate ions in the GR suspension were reduced to zero charge copper. Radial structural functions indicated that the structure of GR comprised edge sharing of FeO6 octahedral units, which was changed by the oxidation of Fe(II). In addition, it was found that the GR was partially oxidised to α-FeOOH by the addition of copper ions.

KW - A. Copper

KW - A. Iron

KW - A. Steel

KW - B. XRD

KW - C. Atmospheric corrosion

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U2 - 10.1016/j.corsci.2008.02.022

DO - 10.1016/j.corsci.2008.02.022

M3 - Article

AN - SCOPUS:44449117045

SN - 0010-938X

VL - 50

SP - 1761

EP - 1765

JO - Corrosion Science

JF - Corrosion Science

IS - 6

ER -

Changes in chemical state and local structure of green rust by addition of copper sulphate ions

Abstract

Keywords

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