Open AccessReduced Graphene Oxide-sno2-Polyaniline Ternary Composite for High-Performance Supercapacitors
Author(s) -
Vimukthi Jayaweera,
W. L. N. C. Liyanage,
R.C.L. De Silva,
S.R.D. Rosa,
I. R. M. Kottegoda
Publication year - 2021
Publication title -
material science research india/material science research india
Language(s) - English
Resource type - Journals
eISSN - 2394-0565
pISSN - 0973-3469
DOI - 10.13005/msri/180208
Subject(s) - supercapacitor , polyaniline , graphene , materials science , nanocomposite , capacitance , graphite oxide , electrode , oxide , horizontal scan rate , composite number , gravimetric analysis , ternary operation , chemical engineering , polyaniline nanofibers , nanotechnology , composite material , cyclic voltammetry , electrochemistry , polymer , chemistry , metallurgy , organic chemistry , computer science , engineering , polymerization , programming language
A novel symmetric supercapacitor electrode material, rGO-SnO2-polyaniline nanocomposite,was synthesized using graphite oxide, SnCl2.2H2O, and pure Aniline as precursors in a scalable and straightforward one-pot process. Analysis revealed that the rGO-SnO2-polyaniline composite had been successfully synthesized. When the two-electrode supercapacitor was assembled using 1M H2SO4, it showed an outstanding specific gravimetric capacitance of 524.2 F/g at a 5 mV/s scan rate. To the best of our knowledge, such a higher value for a two-electrode specific capacitance for a supercapacitor was never reported.Furthermore, even at a high current density of 1 A/g, the material disclosed an outstanding charge-discharge characteristic. Thus, the rGO-SnO2-polyaniline nanocomposite couldalso be used as an electrode for commercial supercapacitors.