Bioinspired silver nanoparticles decorated reduced graphene oxide nanocomposite for supercapacitor applications

Abstract

In the present work, we have used the stem extract of Carica papaya for the synthesis of silver nanoparticles. The green synthesized silver nanoparticles were utilized in the decoration of reduced graphene oxide under ultrasonic conditions. The synthesized nanocomposite has been characterized using different analytical techniques such as scanning electron microscopy, UV-visible, Fourier transform infrared, X-ray diffraction, and energy dispersive X-ray. The silver and graphene-based nanocomposite showed the specific capacitance of 254.8, 183, 151.8, 118.9, 97.3 and 81.3 F g−1 at scan rates of 10, 20, 30, 50, 75 and 100 mV s−1, respectively.