Green sonochemical synthesis of conducting polymer/RuO2 composite granules as an efficient electrode for supercapacitor applications
P. Ramyakrishna, B. Rajender, A. Saran, M.F. Ahmer, Inamuddin
A simple and efficient sonochemical method for synthesis of conducting polymers such as polyaniline (PANI), poly(3,4-ethylenedioxy thiophene) (PEDOT), polypyrrole (PPY)/ruthenium dioxide (RuO2) nanocomposites in which RuO2 are uniformly deposited on the surface of the conducting polymer have been developed. Hydrous ruthenium oxide in low quantity (10 wt% with respect to monomer) was introduced to the conducting polymer in order to improve the pseudocapacitance properties and cycle durability. Among these, PANI-RuO2 composite shows excellent capacitance (670 F g-1) and retained 89% of capacitance after 10,000 galvanostatic charge-discharge cycles with a coulombic efficiency of 98-100% at a current density of 1 A g-1, energy density of 31.6 Wh kg-1 and power density of 600 W kg-1. This composite fulfilled the requirement of long durability necessary for an energy storage system.
Keywords
Conducting Polymer, RuO2, Supercapacitor, Button Cell, Spherical Granular Morphology
Published online 1/15/2018, 15 pages
DOI: https://dx.doi.org/10.21741/9781945291531-3
Part of Nanocomposites for Electrochemical Capacitors
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