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Facile Synthesis of FeCo/Fe3O4 Nanocomposite with High Wave-Absorbing Properties
Department of Mechanics, Beijing Jiaotong University, Beijing 100044, China
Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan 030051, China
* Author to whom correspondence should be addressed.
Received: 21 March 2013; in revised form: 20 June 2013 / Accepted: 21 June 2013 / Published: 9 July 2013
Abstract: The FeCo/Fe3O4 nanocomposite was synthesized using the hydrothermal approach, in which the FeCo alloy and Fe3O4 are formed by one step. The structure of the FeCo/Fe3O4 nanocomposite was characterized by means of Scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray energy-dispersive spectrometer spectroscopy (EDX). They show that the mass ratio of FeCo/Fe3O4 strongly depends on the reaction temperature. Such various architectures follow a stepwise growth mechanism of the composites prepared in various reaction temperatures were also discussed. It indicates that this strategy is facile, effective and controllable for the synthesis of FeCo/Fe3O4 by the one-step method. Furthermore, the magnetic and wave-absorbing properties of the nanocomposites with various structures were investigated in detail. The results show that the FeCo/Fe3O4 with higher mass ratio has higher magnetic properties. Moreover, the FeCo/Fe3O4 nanocomposite shows high wave-absorbing properties (e.g., –37.9 dB), which are expected to apply in microwave absorbing materials.
Keywords: Fe3O4/FeCo; hydrothermal; one-step; magnetic; microwave absorbing
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MDPI and ACS Style
Gu, Y.; Cao, Y.; Chi, H.; Liang, Q.; Zhang, Y.; Sun, Y. Facile Synthesis of FeCo/Fe3O4 Nanocomposite with High Wave-Absorbing Properties. Int. J. Mol. Sci. 2013, 14, 14204-14213.
Gu Y, Cao Y, Chi H, Liang Q, Zhang Y, Sun Y. Facile Synthesis of FeCo/Fe3O4 Nanocomposite with High Wave-Absorbing Properties. International Journal of Molecular Sciences. 2013; 14(7):14204-14213.
Gu, Yu; Cao, Yang; Chi, Huijuan; Liang, Qing; Zhang, Yongji; Sun, Youyi. 2013. "Facile Synthesis of FeCo/Fe3O4 Nanocomposite with High Wave-Absorbing Properties." Int. J. Mol. Sci. 14, no. 7: 14204-14213.