Electrochemically reduced graphene oxide/nano-WO

A hybrid (Reduced Graphene Oxide) RGO$$+$$nano-WO$$_{3}$$ flexible electrode on carbon cloth substrate has been designed for application as flexible supercapacitor electrode. The electrode has been designed by electrochemically reducing the graphene oxide onto a hydrothermally deposited nano-WO$$_{3}$$ on flexible carbon cloth electrode for this purpose. The electrode exhibits an enhanced supercapacitor behaviour in comparison with nano-WO$$_{3}$$ alone electrode. The hybrid RGO$$+$$nano-WO$$_{3}$$ electrode shows areal capacitance of approximately 200 mF/cm$$^{2}$$, which is more than three times the value obtained from nano-WO$$_{3}$$ (63 mF/cm $$^{2}$$) only. It also displays superior stability of 500 cycles while the stability of nano-WO$$_{3}$$ is limited up to 250 cyclic voltammogram cycles. Performance of the RGO$$+$$nano-WO$$_{3}$$ flexible electrode is enhanced due to the fact that it has an increased surface area (nearly twice as compare to nano-WO$$_{3}$$ only) because of incorporation of RGO to form a hybrid electrode