▎ 摘　　要

NOVELTY - Producing electrode containing reduced graphene oxide comprises: (i) producing graphene oxide coated nanofiber surface with the graphene oxide solution in the graphene oxide solution feeding syringe on the polyvinylidene fluoride (PVDF) nanofiber mat formed on the rotating drum by electrospray method, with the help of a high voltage source in the voltage of 10-40 kV; and (ii) soaking mentioned graphene oxide coated nanofiber surface in hydrazine hydrate solution for the conversion of the graphene oxide coated nanofiber surface to the reduced graphene oxide coated nanofiber surface after the graphene oxide coating process. USE - The method is useful for producing electrode which is containing reduced graphene oxide which is useful in piezoelectric generators (claimed) for nanofiber-based nanogenerators. ADVANTAGE - The method produces electrode containing reduced graphene oxide nanofiber surface having increased mechanical stress resistance, produced by electrospray method to increase efficiency by using in piezoelectric nanogenerators with graphene electrodes. DETAILED DESCRIPTION - INDEPENDENT CLAIMs are also included for: electrode, which increases the mechanical stress resistance of the reduced graphene oxide-coated nanofibrous structure as a result of the reduced graphene oxide-coated nanofibrous structure tightly wrapping the PVDF nanofiber mat (11) of the reduced graphene oxide coating and increases the output voltage and output current obtained from nanogenerators by the same tightly wrapping structure is used to increase the interface area of the PVDF nanofiber mat with reduced graphene oxide coating, is obtained by the above method; and piezoelectric nanogenerator with graphene electrode comprising a graphene electrode socket in the middle of spacer paper positioned between two aluminum electrodes and an electrode placed in the graphene electrode socket. DESCRIPTION OF DRAWING(S) - The figure shows a diagram of coating of graphene oxide onto the nanofiber mat. 10Rotating drum 11PVDF nanofiber mat 12High voltage source 14Nozzle 15Solution transfer tube