No abstract

No abstract

No abstract

No abstract

In this study, Vanadium pentoxide (V 2 O 5 ) -graphene composite (VRGO) is prepared by simple hydrothermal treatment. V 2 O 5 nanoparticles are prepared by solvothermal method using environmentally benign precursor, vanadium oxide acetyl acetonate. Graphene oxide (GO) prepared by modified Hummer's method is the origin for graphene in prepared composite. GO is wrapped onto V 2 O 5 nanoparticles then subsequently reduced to graphene using simple heat treatment, thus avoiding the use of harmful reducing agents. This composite is characterized by X-ray diffraction for the structural analysis, scanning electron microscopy to identify the morphology, confocal Raman microscopy and Fourier transform infrared spectroscopy for molecular structure and chemical bonds present in the composite. The BET surface area analyzer is used for surface area analysis and impedance analyzer for electrical studies. Impedance analysis carried out at room temperature shows a considerable decrease in the resistance of prepared composite VRGO, in comparison to bare V 2 O 5 thus providing a good conductivity for the sample.