▎ 摘　　要

In the present study, graphene oxide nanoribbons (GONR) and reduced graphene oxide nanoribbons (RGONR) supported polyaniline (PANI) nanocomposites are synthesized via an in situ chemical polymerization method and investigated for super-capacitor electrodes. Electrochemical studies performed by cyclic voltammetry and galvanostatic charge-discharge (GCD) measurements suggest that both nanocomposites possess enhanced specific capacitance (C-sp as 740 F/g for GONR/PANI and 1180 F/g for RGONR/PANI at 5 mV/s). GONR/PANI and RGONR/PANI nanocomposites show good rate capability with high C-sp upon increasing the current density from 2 to 20 A/g in GCD measurements, approximately 55% decay in C-sp value of the nanocomposites is observed compared to pristine PANI (similar to 70%). The undertaken study signifies enhanced electrical and electrochemical properties of GONR/RGONR supported PANI nanocomposites due to a synergistic effect of GONR/RGONR and PANI. Furthermore, asymmetric devices are fabricated using GONR/RGONR as the negative electrode, while GONR/PANI and RGONR/PANI are used as the positive electrode, which exhibit significant enhancement in energy density and device performance.