Abstract
A facile PVA-assisted low-temperature solid state process using CoCl 2·6H 2O, FeCl 3·6H 2O, and NH 4HCO 3 as precursors and using PVA chains as a medium to synthesize well-dispersed CoFe 2O 4 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 CoFe 2O 4 nanoparticles, and the increase in specific surface area from 14.82 m 2/g to 66.92 m 2/g.
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