Influence of silicon on local structure and morphology of γ-FeOOH and α-FeOOH particles

Sang Koo Kwon, Kozo Shinoda, Shigeru Suzuki, Yoshio Waseda

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

The extended X-ray absorption fine structure (EXAFS) method was used for investigating the local structures of lepidocrocite and goethite with and without silicon. The structure and morphology of these particles were investigated using X-ray diffraction and transmission electron microscopy, respectively. The bonding structure was examined by Fourier transform infrared spectroscopy (FT-IR). When silicon species was added, the structure and morphology changed while the linkage of FeO6 octahedral units was distorted. The FT-IR spectra revealed the formation of the Fe-O-Si bond in particles containing silicate ions, and the characteristic bond affects the local structure and morphology of the particles.

Original languageEnglish
Pages (from-to)1513-1526
Number of pages14
JournalCorrosion Science
Volume49
Issue number3
DOIs
Publication statusPublished - 2007 Mar

Keywords

  • A. Iron
  • A. Steel
  • B. AFS
  • B. XRD
  • C. Rust

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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