Shouhu Xuan et al 2007 Nanotechnology 18 035602 doi:10.1088/0957-4484/18/3/035602
Shouhu Xuan1,2, Lingyun Hao2,3, Wanquan Jiang2, Xinglong Gong3, Yuan Hu1,4 and Zuyao Chen2
Show affiliationsOne-step synthesis of carbon-encapsulated Fe3O4 core/shell composites is reported. The Fe3O4 cores were formed via the reduction of Fe3+ by glucose under alkaline conditions obtained by the decomposition of urea. The amorphous carbon shells were carbonized from glucose. A possible formation mechanism for the Fe3O4@C composite was discussed. In order to characterize these Fe3O4@C core–shell composites, high-resolution transmission electron microscopy (HR-TEM), x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), x-ray photoelectron spectroscopy (XPS) and a superconducting quantum interference device (SQUID) magnetometer were employed to characterize the sample obtained using the above method.
81.07.-b Nanoscale materials and structures: fabrication and characterization
68.37.Lp Transmission electron microscopy (TEM)
68.37.Hk Scanning electron microscopy (SEM) (including EBIC)
81.16.Be Chemical synthesis methods
Condensed matter: electrical, magnetic and optical
Issue 3 (24 January 2007)
Received 28 August 2006, in final form 6 November 2006
Published 3 January 2007
Shouhu Xuan et al 2007 Nanotechnology 18 035602
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