表面科学
Online ISSN : 1881-4743
Print ISSN : 0388-5321
ISSN-L : 0388-5321
Hopeite皮膜中の常磁性遷移金属成分に関するESRスペクトル解析
南 達郎佐藤 登
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1988 年 9 巻 6 号 p. 459-462

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The conversion-coated hopeite Zn3(PO4)2·4H2O films on galvannealed steel sheets, containing Mn2+ or Ni2+ from the bath, have been investigated using electron spin resonance for the purpose of determining the chemical structure of the films. Zn(II) in the hopeite crystals, the electron state of which is 3 d10 did not responded to ESR, but manganese and nickel ions in the films did. Six peaks in the spectrum for manganese indicate that the component is Zn3-xMnx(PO4)2·4H2O, and from the spectrum of nickel the component was thought to be Ni3(PO4)2·7H2O. However, since the g value of the hopeits film containing nickel ions was different from that of Ni3(PO4)2·7H2O, the most probable structure would be Zn3-xNix(PO4)2·4H2O. In this research, it was confirmed that ESR analysis to determine the chemical structure of zinc phosphate films containing metal components were very effective and useful.

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