Structural evolution from iron sulfide nanoparticle to pyrite

DOI
  • Sano Yoshinari
    Graduate School of Life and Environmental Sciences, University of Tsukuba
  • Kyono Atsushi
    Faculty of Life and Environmental Sciences, University of Tsukuba
  • Takagi Sota
    Graduate School of Life and Environmental Sciences, University of Tsukuba

Bibliographic Information

Other Title
  • 硫化鉄ナノ粒子から黄鉄鉱への結晶構造変化

Description

FeS nanoparticle, known as a precursor of pyrite, is formed in anaerobic marine sediments. In this study, we investigated structural changes from the FeS nanoparticle to pyrite by using hydrothermal experiment, synchrotron XRD measurement, and XAFS measurement. The XRD pattern of synthesized FeS nanoparticle corresponds to that of nanocrystalline mackinawite. The mackinawite transforms to pyrite by the addition of sulfur, but it partially transforms to greigite. While the coordination of Fe changes from FeS4 tetrahedron to FeS6 octahedron, the valence of Fe remains divalent.

Journal

Details 詳細情報について

  • CRID
    1390283659840006144
  • NII Article ID
    130007786149
  • DOI
    10.14824/jakoka.2018.0_64
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top