Synthesis and Characterization of Rgo Doped Nb2O5 Nano Composite for Chemical Sensor Studies

Abstract

It has been reported that an effective synthesis of rGO-Nb2O5 composite for electrochemical sensor studies has been reported. The modified Hummer's method was used to produce reduced graphene oxide (rGO). The metal oxide (Nb2O5) was introduced to the rGO via the hydrothermal method to form the composite. X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), and were used to examine the sample. The CV measurements show a significant improvement in electrochemical reversibility, with the specific capacitances of rGO and Nb2O5/rGO being 45 and 110 Fg-1, respectively. These results indicate that the capacitive behavior and electron transfer of the Nb2O5/rGO nano composite was significantly higher than that of rGO. The charge-discharge curves show good symmetry and linear deviations with time change, indicating superior capacitance. This is primarily due to the electrode reversible reaction, and it has also been revealed as a type of super capacitor electrode material. The electrode materials obtained have the highest specific capacitance and excellent rate capability.