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Citation: NIU Xin-Shu, XU Hong. Preparation of Nanocrystal α-Fe₂O₃ by Sol-Gel Method[J]. Chinese Journal of Applied Chemistry, ;2000, 17(6): 611-614. shu

Preparation of Nanocrystal α-Fe₂O₃ by Sol-Gel Method

NIU Xin-Shu ,
XU Hong

1.
College of Chemistry and Environmental Science, He'nan Normal University, Xinxiang 453002

Received Date: 10 April 2000
Available Online: 17 July 2000
Fund Project: 河南省科委基金(984042200)资助 (984042200)

The nanocrystal T-Fe₂O₃ with an average size of about 30 nm was prepared by a sol-gel method in iron nitrate and 2-methoxyethanol solution. The product was characterized by TEM, XRD and TG-DTA. The results showed that addition of sodium dodecylsulfonate(SDS) into the system favourd the formation of T-Fe₂O₃ phase and the gelation time was reduced greatly by adding tetrabutyl titanate in solution. By using TESi instead of TBTi, the product is a mixture of spinel V-Fe₂O₃ and T-Fe₂O₃, with the former as a main crystal phase.
- T-Fe₂O₃ nanocrystal,
- sol-gel method,
- tetrabutyl titanate,
- sodium dodecylsulfonatt
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Preparation of Nanocrystal α-Fe₂O₃ by Sol-Gel Method