Oxidation of green rust suspensions containing different chromium ion species

Katsuya Inoue; Kozo Shinoda; Shigeru Suzuki; Yoshio Waseda

doi:10.1016/j.corsci.2009.12.013

Oxidation of green rust suspensions containing different chromium ion species

Katsuya Inoue, Kozo Shinoda, Shigeru Suzuki, Yoshio Waseda

Division of Inorganic Material Research

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

The oxidation of hydrosulphate green rust (GR2(SO₄^2-)) suspension containing different chromium ion species was investigated by X-ray diffraction, X-ray absorption spectroscopy and transmission electron microscopy. The pH, oxidation-reduction potential and amount of dissolved oxygen in aqueous solutions were measured during the reactions. The results show that the addition of Cr(III)₂(SO₄)₃ solution suppresses the transformation of GR2(SO₄^2-) into iron oxyhydroxides and oxides in aqueous solution, while the addition of Na₂Cr(VI)O₄ solution promotes the transformation of GR2(SO₄^2-) in which Cr(VI) is reduced to Cr(III); α-FeOOH particles were refined by the addition of the chromium ions.

Original language	English
Pages (from-to)	1421-1427
Number of pages	7
Journal	Corrosion Science
Volume	52
Issue number	4
DOIs	https://doi.org/10.1016/j.corsci.2009.12.013
Publication status	Published - 2010 Apr 1

Keywords

A. Iron
A. Steel
B. AFS
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.2009.12.013

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Inoue, K., Shinoda, K., Suzuki, S., & Waseda, Y. (2010). Oxidation of green rust suspensions containing different chromium ion species. Corrosion Science, 52(4), 1421-1427. https://doi.org/10.1016/j.corsci.2009.12.013

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title = "Oxidation of green rust suspensions containing different chromium ion species",

abstract = "The oxidation of hydrosulphate green rust (GR2(SO42-)) suspension containing different chromium ion species was investigated by X-ray diffraction, X-ray absorption spectroscopy and transmission electron microscopy. The pH, oxidation-reduction potential and amount of dissolved oxygen in aqueous solutions were measured during the reactions. The results show that the addition of Cr(III)2(SO4)3 solution suppresses the transformation of GR2(SO42-) into iron oxyhydroxides and oxides in aqueous solution, while the addition of Na2Cr(VI)O4 solution promotes the transformation of GR2(SO42-) in which Cr(VI) is reduced to Cr(III); α-FeOOH particles were refined by the addition of the chromium ions.",

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

author = "Katsuya Inoue and Kozo Shinoda and Shigeru Suzuki and Yoshio Waseda",

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AU - Inoue, Katsuya

AU - Shinoda, Kozo

AU - Suzuki, Shigeru

AU - Waseda, Yoshio

PY - 2010/4/1

Y1 - 2010/4/1

N2 - The oxidation of hydrosulphate green rust (GR2(SO42-)) suspension containing different chromium ion species was investigated by X-ray diffraction, X-ray absorption spectroscopy and transmission electron microscopy. The pH, oxidation-reduction potential and amount of dissolved oxygen in aqueous solutions were measured during the reactions. The results show that the addition of Cr(III)2(SO4)3 solution suppresses the transformation of GR2(SO42-) into iron oxyhydroxides and oxides in aqueous solution, while the addition of Na2Cr(VI)O4 solution promotes the transformation of GR2(SO42-) in which Cr(VI) is reduced to Cr(III); α-FeOOH particles were refined by the addition of the chromium ions.

AB - The oxidation of hydrosulphate green rust (GR2(SO42-)) suspension containing different chromium ion species was investigated by X-ray diffraction, X-ray absorption spectroscopy and transmission electron microscopy. The pH, oxidation-reduction potential and amount of dissolved oxygen in aqueous solutions were measured during the reactions. The results show that the addition of Cr(III)2(SO4)3 solution suppresses the transformation of GR2(SO42-) into iron oxyhydroxides and oxides in aqueous solution, while the addition of Na2Cr(VI)O4 solution promotes the transformation of GR2(SO42-) in which Cr(VI) is reduced to Cr(III); α-FeOOH particles were refined by the addition of the chromium ions.

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KW - C. Atmospheric corrosion

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