Abstract
Introducing and use of novel conductive polymers and their composites for use in the supercapacitor industry is very important. In this study, for the first time, the doping of copper nanoparticles on conductive poly benzidine polymer (Cu-PB) deposited on graphene oxide sheets (GO) created on graphite sheets as a result of the anodizing process (AGs) has been introduced as a novel electrode. Cu-PB/GO/AGs electrode was fabricated simply by anodizing the graphite sheet followed by in-situ polymerization of poly benzidine and finally doping copper nanoparticles on the surface of the electrode. The surface morphology and chemical structure of the Cu-PB/GO/AGs electrode were examined by ATR-IR, XRD, EDX, and FE-SEM analysis. The capacitive behavior of the fabricated electrode was evaluated by electrochemical techniques such as cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS) and the results showed that the Cu-PB/GO/AGs electrode has an excellent capacitive capacity of 777.77 F g−1 at 1 A g−1 without ohmic drop in 1 M H2SO4 solution. Finally, the practical application of Cu-PB/GO/AGs electrode was evaluated by fabricating a symmetrical solid-state supercapacitor device and the results showed that fabricate device has 83.02 % cyclic stability after 10,000 charge-discharge cycles and a capacitance of 305.55 F g−1 at 0.5 A g−1 that proven the Cu-PB/GO/AGs electrode is a promising candidate for use in supercapacitor industries.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call