Preparation of Composite Iron Oxides via Hydrothermal Process

Jian Zhen Huo

doi:10.4028/www.scientific.net/AMR.583.162

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 583Preparation of Composite Iron Oxides via...

Preparation of Composite Iron Oxides via Hydrothermal Process

Abstract:

Composite iron oxides are very important advanced materials. In this paper different types of iron oxides α-FeOOH, α-Fe2O3 and composite oxide NiFe2O4 were synthesized via a simple hydrothermal method at 180°C for 10 h. The phases and morphologies of the products were characterized by X-ray diffractometer and high-resolution transmission electron microscopy. The results indicated that α-FeOOH nanorods were prepared when mole concentration of NaOH solution was 3M. By increasing the concentration of NaOH to 5M and 8M, we obtained qusi-fusiform α-Fe2O3 single-crystallines and composite oxide NiFe2O4 nanocrystals, respectively. Our experiments showed that both the concentration of NaOH solution and existence of sulphate ions affect the formation of varying morphologies of the products.

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Periodical:

Advanced Materials Research (Volume 583)

Pages:

162-166

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.583.162

Citation:

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Online since:

October 2012

Authors:

Jian Zhen Huo

Keywords:

Characterization, Hydrothermal, Iron Oxides, Nanocrystal

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