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Trans Tech Publications, Advanced Materials Research, (79-82), p. 1281-1284, 2009

DOI: 10.4028/www.scientific.net/amr.79-82.1281

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Synthesis and Formation Mechanism of Hollow Carbon Spheres Containing Fe<sub>3</sub>N Nanocrystals

Journal article published in 2009 by Bo Yang Liu, De Chang Jia, Li Hua Dong, Yan Sheng Yin
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Hollow carbon spheres containing Fe3N nanocrystals (Fe3N/HCSs) are synthesized by ferrocene and ammonium chloride in high pressure argon at 500 °C. The structure, morphology and properties of the products are characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and vibrating sample magnetometry (VSM). The hollow carbon spheres have diameters of 1-10 µm and shell thickness of hundreds of nanometers. The dimensions of the acicular Fe3N nanocrystals have diameters of ca. 100 nm and lengths of 600-800 nm. The weight percent of Fe3N nanocrystals in Fe3N/HCSs is about 37.8%. The saturation magnetization value of the hollow carbon spheres containing Fe3N nanocrystals is 10.61 emu/g.