Synthesis and Formation Mechanism of Hollow Carbon Spheres Containing Fe3N Nanocrystals

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang

Pages:

1281-1284

DOI:

10.4028/www.scientific.net/AMR.79-82.1281

Citation:

B. Y. Liu et al., "Synthesis and Formation Mechanism of Hollow Carbon Spheres Containing Fe3N Nanocrystals", Advanced Materials Research, Vols. 79-82, pp. 1281-1284, 2009

Online since:

August 2009

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$35.00

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