Influence of sulfate ions on the atomic-scale structure of β-FeOOH

Sang Koo Kwon, Shigeru Suzuki, Masatoshi Saito, Takayuki Kamimura, Hideaki Miyuki, Yoshio Waseda

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Ordinary X-ray diffraction measurements by Mo Kα radiation and anomalous X-ray scattering (AXS) measurements by synchrotron radiation below Fe K absorption edge were used for characterizing the atomic-scale structure of β-FeOOH particles with and without sulfate ions. Fourier-transform infrared spectroscopy (FT-IR) was also used for analyzing a change of the bonding structure in the β-FeOOH particles by addition of sulfate ions. The realistic atomic-scale structures of the β-FeOOH particles with and without sulfate ions were estimated by fitting both the ordinary and environmental interference functions with model calculation using the reverse Monte Carlo (RMC) simulation technique. The results showed that the linkages of FeO 6 octahedral structural units in the β-FeOOH particles are distorted by addition of sulfate ions, although the structure of the β-FeOOH particles with and without sulfate ions is fundamentally similar to the ideal β-FeOOH structure. The structural distortion in the β-FeOOH particles with sulfate ions is likely to arise from the incorporation of sulfate ions. The atomic-scale structures visualized for these β-FeOOH particles were discussed coupled with the bonding structure observed in FT-IR.

本文言語English
ページ(範囲)2030-2035
ページ数6
ジャーナルMaterials Transactions
46
9
DOI
出版ステータスPublished - 2005 9月

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Influence of sulfate ions on the atomic-scale structure of β-FeOOH」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル