Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.472-473
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- 2006
The Synthesis of Maghemite and Hematite Nanospheres
- Dar, Mushtaq Ahmad (Thin film Technology laboratory, School of Chemical Engineering, Chonbuk National University) ;
- Ansari, Shafeeque G. (Thin film Technology laboratory, School of Chemical Engineering, Chonbuk National University) ;
- Wahab, Rizwan (Thin film Technology laboratory, School of Chemical Engineering, Chonbuk National University) ;
- Kim, Young-Soon (Thin film Technology laboratory, School of Chemical Engineering, Chonbuk National University) ;
- Shin, Hyung-Shik (Thin film Technology laboratory, School of Chemical Engineering, Chonbuk National University)
- Published : 2006.09.24
Abstract
Maghemite and hematite nanospheres were synthesized by using the Sol-gel technique. The structural properties of these nanosphere powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), and pore size distribution. Hematite phase shows crystalline structures. The mean particle size that resulted from BET and XRD analyses were 4.9 nm and 2 nm. It can be seen from transmission electron microscopy that the size of the particles are very small which is in good agreement with the FESEM and the X-ray diffraction. The BET and pore size method were employed for specific surface area determination.