Abstract
ABSTRACT One-step microwave-assisted synthetic route for the fabrication of Mn 3 O 4 nanoparticles@reduced graphene oxide (Mn 3 O 4 @rGO) nanocomposites has been demonstrated. The morphological structures of the nanocomposites are characterized by Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), thermogravimetric analyses (TGA), and scanning electron microscopy (SEM), respectively. All of the results indicate that the microwave-assisted synthesis results in the growth of Mn 3 O 4 and the reduction of graphene oxide simultaneously in ethylene glycol-water system. The specific capacitance of the as-prepared Mn 3 O 4 @rGO nanocomposite is higher than those of rGO and pure Mn 3 O 4 , which indicates the synergetic interaction between rGO and Mn 3 O 4 . The nanocomposites also have good rate capability and cycling stability in electrochemical experiments. This facile technique may be extended to the large scale and cost effective production of other composites based on graphene and metal oxide for many applications.
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