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| Titel: |
Structure and Properties of Iron Oxide Nanoparticles Prepared Through a Gentle Chemistry Route |
| Auteur: |
Deb, P. Basumallick, A. |
| Verschenen in: |
Materials and manufacturing processes |
| Paginering: | Jaargang 21 (2006) nr. 7 pagina's 658-661 |
| Jaar: |
2006-10-01 |
| Inhoud: |
Gamma iron oxide (γ -Fe2O3) powders were prepared by low temperature thermal treatment of the precipitates obtained from a homogeneous solution of iron (III) nitrate and molten stearic acid. The process kinetics and thermal properties of the synthesized product were studied with the aid of differential scanning calorimetric (DSC) technique. Evolution of γ -Fe2O3 particles from the nonaqueous homogeneous solution has been found to follow nucleation and growth type of mechanism. The particle size and their distribution has been estimated from the small angle X-ray scattering (SAXS), X-ray diffraction (XRD), and transmission electron microscopic (TEM) investigations. The results of the investigations show that γ -Fe2O3 nanoparticles exhibit a narrow size distribution with average particle size ranging between 6-8 nm. Presence of superparamagnetic fraction at room temperature is evidenced from the results of Mossbauer spectroscopy. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 12 van 18 gevonden artikelen
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