Formation of Zn-bearing ferrite by air oxidation of aqueous suspension.

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概要

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• Zn-bearing spinel ferrites were obtained by air oxidation of the iron(II) hydroxide suspension of the mole fraction Zn(II) to [Zn(II)+Fe<SUB>total</SUB>], <I>r</I><SUB>Zn</SUB>, ranging from 0.029 to 0.33 (except for 0.057) at pH 10.0 and 65 °C, but at <I>r</I><SUB>zn</SUB>=0.057 only α-FeOOH was formed. The Zn-bearing spinel ferrite obtained at <I>r</I><SUB>Zn</SUB>=0.33 has the normal spinel structure. At pH 8.0, the Zn-bearing spinel ferrite is obtained at <I>r</I><SUB>Zn</SUB>=0.057, but the spinel ferrite is slightly oxidized to γ-Fe<SUB>2</SUB>O<SUB>3</SUB>.

• 公益社団法人 日本化学会の論文

著者

• Nakajima Jun-ichiro

  Department Of Biology And Geoscience Faculty Of Science Shizuoka University

• Tamaura Yutaka

  Department Of Chemistry Tokyo Institute Of Technology

• KATSURA Takashi

  Department of Chemistry

• Kanzaki Tadao

  Department Of Chemistry Tokyo Institute Of Technology

• Nakajima Jun-ichiro

  Department of Chemistry, Tokyo Institute of Technology Ookayama

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