Synthesis and Characterization of FLG/Fe<sub>3</sub>O<sub>4</sub> Nanohybrid Supercapacitor
Sarno, M.
Cirillo, C.
Ponticorvo, E.
Ciambelli, P.
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Sarno M., Cirillo C., Ponticorvo E., Ciambelli P., 2015, Synthesis and Characterization of FLG/Fe3O4 Nanohybrid Supercapacitor, Chemical Engineering Transactions, 43, 727-732.
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Few layer graphene (FLG)/Fe3O4 nanohybrid has been successfully synthesized by an one-step chemical strategy, consisting in the thermolysis of a suitable magnetite precursor in organic solvent in the presence of surfactants and FLG. This way provides experimental easiness and potential low-cost production. Raman spectroscopy, Transmission electron microscopy – Energy dispersive X-ray spectroscopy (TEM-EDS), thermogravimetric analysis coupled with mass spectromery (TG-DTG-MS) and X-ray diffraction (XRD) were employed for characterization. The nanoparticles with a size of 5 nm, are monodispersed on FLG. The FLG- Fe3O4 hybrid supercapacitor has good electrochemical capacitance performance within potential range from 0 to 1.0 V. The resulting composite exhibited high specific capacitances of 227 F/g and good cyclability in a three-electrode electrochemical cell. The excellent electrochemical performances can be attributed to the high conductivity of FLG as well as to the uniform nano-size of iron oxide dispersed on the support.
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