Ferricoxychloride and Hematite Nanoparticles: Synthesis and Phase Transformation |
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| Journal | Materials Science Forum (Volume 518) |
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| 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 |
| Citation | M. Marinović-Cincović et al., 2006, Materials Science Forum, 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. |
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