Influence of tungstate ions on transformation of green rust to ferric oxyhydroxide via aqueous solution investigated by in situ X-ray absorption spectroscopy

S. Fujieda, A. Yoshino, K. Shinoda, S. Tsuri, S. Suzuki

Research output: Contribution to journalArticlepeer-review

Abstract

Influence of tungstate ions on the transformation of chloride-containing green rust (GR(Cl-)) to fine goethite (α-FeOOH) particles due to the oxidation reaction via aqueous solution at about 300K was investigated by in situ measurements of X-ray absorption spectra. Results showed that the transformation rate of GR(Cl-) in the suspension containing 5mol% W was lower than that in the suspension without tungstate ions. Almost all tungstate ions in the suspension were adsorbed on GR(Cl-) and α-FeOOH. It is probable that the adsorption of tungstate ions reduces the transformation rate of GR(Cl-) and also leads to the precipitation of fine particles.

Original languageEnglish
Pages (from-to)85-92
Number of pages8
JournalCorrosion Science
Volume82
DOIs
Publication statusPublished - 2014 May

Keywords

  • A. iron
  • B. EXAFS
  • B. XANES
  • C. oxidation

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Influence of tungstate ions on transformation of green rust to ferric oxyhydroxide via aqueous solution investigated by in situ X-ray absorption spectroscopy'. Together they form a unique fingerprint.

Cite this