Silica-sheathed pyrrotite nanowires: Synthesis and mechanism

  • Hao Xu Zhang
  • , Jian Ping Ge
  • , Jin Wang
  • , Zhe Wang
  • , Da Peng Yu
  • , Ya Dong Li*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We have studied the growth of silica-sheathed 3C-Fe7S 8 products on silicon substrates with FeCl2 and sulfur precursors at the temperature region of 600-800°C. On the basis of the crystal structure of Fe7S8, we have proposed a model including the kinetic competition of the adsorption of silica species on Fe2-Fe3-Fe4 units at the 4Fe layer and on the Fe2-Fe3-Fe4-Fe5 units parallel to the c-axis. Using this model, we have not only explained all the experimental phenomena but also especially prepared Fe7S8 nanowires at 650°C by introducing water into the reaction system.

Original languageEnglish
Pages (from-to)11585-11591
Number of pages7
JournalJournal of Physical Chemistry B
Volume109
Issue number23
DOIs
StatePublished - 16 Jun 2005
Externally publishedYes

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