Ferricoxychloride and Hematite Nanoparticles: Synthesis and Phase Transformation
|
| Journal |
Materials Science Forum (Volume 518) |
| Volume |
Recent Developments in Advanced Materials and Processes |
| Edited by |
Dragan P. Uskokovic, Slobodan K. Milonjic and Dejan I. Rakovic |
| Pages |
63-66 |
| DOI |
10.4028/www.scientific.net/MSF.518.63 |
| Online since |
July, 2006 |
| Authors |
M. Marinović-Cincović,
Guillaume Wang,
Michel Fedoroff,
Z.V. Šaponjić,
S.K. Milonjić,
J.M. Nedeljković
|
| Keywords |
Ferricoxychloride, Hematite, Nanoparticle, Phase Transformation |
| Abstract |
A synthetic procedure based on thermal hydrolysis of iron(III) chloride solutions for the
preparation of hematite (α-Fe2O3) and ferricoxychloride (FeOCl) colloids consisting of
nanoparticles (NPs) is described. Transmission electron microscopy indicated that both colloids
consisted of particles smaller than 10 nm. X-ray diffraction measurements revealed transformation
of FeOCl NPs into α-Fe2O3 NPs after a few months. The phase transformation was explained in
terms of redissolution – recrystallization process. UV-vis spectroscopy was used for precise
determination of the band gap of α-Fe2O3. |
| Full Paper |
Get the full paper by clicking here
|
| Preview |
Free first page example |
