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Runhua Qin, Synthesis of well-dispersed CoFe2O4 nanoparticles via PVA-assisted low-temperature solid state process. journal of alloys and compounds. 2009, 482(1-2): 508-511.
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doi:10.1016/j.jallcom.2009.04.047  
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Synthesis of well-dispersed CoFe2O4 nanoparticles via PVA-assisted low-temperature solid state process
Runhua Qina, b, Fengsheng Lia, , , Li Liua and Wei Jianga

aNational Special Superfine Powder Engineering Research Center, Nanjing University of Science & Technology, Xiaolingwei 200, Nanjing 210094, PR China

bDepartment of Physics, North University of China, Taiyuan 030051, PR China


Received 2 March 2009;  revised 13 April 2009;  accepted 14 April 2009.  Available online 21 April 2009.

Abstract
A facile PVA-assisted low-temperature solid state process using CoCl2¡¤6H2O, FeCl3¡¤6H2O, and NH4HCO3 as precursors and using PVA chains as a medium to synthesize well-dispersed CoFe2O4 nanoparticles was developed. The effects of the amount of added PVA and calcined temperature on the characteristics of the products were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and BET surface area analysis. Results showed that the facile addition of PVA chains in the reactant mixture resulted in the formation of well-dispersed CoFe2O4 nanoparticles, and the increase in specific surface area from 14.82 m2/g to 66.92 m2/g.

Keywords: Nanostructures; X-ray diffraction; Nanofabrications; Surfaces and interfaces

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