Formation of iron oxides by the oxidation of iron in Fe-MOH-H2O and Fe-MOH-H2O-O2 systems (M = Li, Na, K)

S. Uchida; H. Kashiwagi; T. Sato; A. Okuwaki

doi:10.1007/BF00352798

Formation of iron oxides by the oxidation of iron in Fe-MOH-H₂O and Fe-MOH-H₂O-O₂ systems (M = Li, Na, K)

S. Uchida, H. Kashiwagi, T. Sato, A. Okuwaki

Center for Exploration of New Inorganic Materials

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

11 Citations (Scopus)

Abstract

The oxidation behaviours of iron powders, ca. 100 μm in diameter, in 5-50 m NaOH, 5-40 m KOH and 5-40 m LiOH solutions at 373-573 K were investigated in the absence and presence of oxygen, where m is molality. The oxidation of iron proceeded noticeably above 423 K to form Fe₃O₄, α-Fe₂O₃, α-NaFeO₂, γ-Fe₂O₃, Li_xFe_3-xO₄ and α-LiFeO₂ depending on the reaction conditions. The rate of oxidation in LiOH solutions was much slower than those in NaOH and KOH solutions.

Original language	English
Pages (from-to)	3827-3830
Number of pages	4
Journal	Journal of Materials Science
Volume	31
Issue number	14
DOIs	https://doi.org/10.1007/BF00352798
Publication status	Published - 1996 Jan 1

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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abstract = "The oxidation behaviours of iron powders, ca. 100 μm in diameter, in 5-50 m NaOH, 5-40 m KOH and 5-40 m LiOH solutions at 373-573 K were investigated in the absence and presence of oxygen, where m is molality. The oxidation of iron proceeded noticeably above 423 K to form Fe3O4, α-Fe2O3, α-NaFeO2, γ-Fe2O3, LixFe3-xO4 and α-LiFeO2 depending on the reaction conditions. The rate of oxidation in LiOH solutions was much slower than those in NaOH and KOH solutions.",

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T1 - Formation of iron oxides by the oxidation of iron in Fe-MOH-H2O and Fe-MOH-H2O-O2 systems (M = Li, Na, K)

AU - Uchida, S.

AU - Kashiwagi, H.

AU - Sato, T.

AU - Okuwaki, A.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - The oxidation behaviours of iron powders, ca. 100 μm in diameter, in 5-50 m NaOH, 5-40 m KOH and 5-40 m LiOH solutions at 373-573 K were investigated in the absence and presence of oxygen, where m is molality. The oxidation of iron proceeded noticeably above 423 K to form Fe3O4, α-Fe2O3, α-NaFeO2, γ-Fe2O3, LixFe3-xO4 and α-LiFeO2 depending on the reaction conditions. The rate of oxidation in LiOH solutions was much slower than those in NaOH and KOH solutions.

AB - The oxidation behaviours of iron powders, ca. 100 μm in diameter, in 5-50 m NaOH, 5-40 m KOH and 5-40 m LiOH solutions at 373-573 K were investigated in the absence and presence of oxygen, where m is molality. The oxidation of iron proceeded noticeably above 423 K to form Fe3O4, α-Fe2O3, α-NaFeO2, γ-Fe2O3, LixFe3-xO4 and α-LiFeO2 depending on the reaction conditions. The rate of oxidation in LiOH solutions was much slower than those in NaOH and KOH solutions.

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