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Synthesis of Nano-Crystalline Magnesium Chromate Spinel by Citrate Sol-Gel Method

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Abstract:

Nanocrystalline MgCr2O4 with a crystal size of about 20nm is synthesized by citrate sol-gel process, which is characterized by X-ray diffraction (XRD), thermogravimetry coupled with differential thermal analysis (TG-DTA) and field emission scanning electron microscopy (FE-SEM). The initial crystallization temperature of MgCr2O4 spinel was at about 550°C, whereas that of the fully crystallized magnesium chromate spinel appeared at about 600°C. The crystal grain size increases with the annealing temperature and holding time.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

730-733

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.730

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Online since:

July 2011

Authors:

Su Ping Li, Xiao Lin Jia, Ya Fang Qi

Keywords:

MgCr2O4 Spinel, Nanomaterial, Powder Technology, Sol-Gel Method

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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