Research on Phases and Morphology of Fe-Se Powders Synthesized by Hydrothermal Method

Ke Gao Liu; Zhong Quan Ma; Jian Hua Wang

doi:10.4028/www.scientific.net/AMM.184-185.1171

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 184-185Research on Phases and Morphology of Fe-Se Powders...

Research on Phases and Morphology of Fe-Se Powders Synthesized by Hydrothermal Method

Abstract:

The Fe-Se powders have been prepared by hydrothermal method at temperatures of 160, 180 and 200 °C from FeCl3•6H2O and SeO2. The phases and morphology of the products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) respectively. Experimental results show that, the major phases of these product powders are all FeSe2, the impurity phase Se can be identified in spite of poor crystallinity of all samples. The poor crystallinity becomes seriously at lower synthesizing temperature under the experimental conditions. These product powders consist of grains, rods or flakes with sizes of 20~300nm, among which the product obtained at 180 °C has the smallest size of 20~40 nm.

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Periodical:

Applied Mechanics and Materials (Volumes 184-185)

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1171-1174

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.184-185.1171

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Online since:

June 2012

Authors:

Ke Gao Liu, Zhong Quan Ma, Jian Hua Wang

Keywords:

FeSe₂, Hydrothermal Method, Morpholoy, Phase, Selenide

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