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 language | English |
|---|---|
| Pages (from-to) | 11585-11591 |
| Number of pages | 7 |
| Journal | Journal of Physical Chemistry B |
| Volume | 109 |
| Issue number | 23 |
| DOIs | |
| State | Published - 16 Jun 2005 |
| Externally published | Yes |