Publication Type:

Journal Article

Source:

Journal of Energy Storage, Elsevier Ltd, Volume 22, p.188-193 (2019)

URL:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85061670636&doi=10.1016%2fj.est.2019.02.010&partnerID=40&md5=016c765effac38a64ac880beefd6aef2

Keywords:

Capacitance, Conducting polymers, Cyclic voltammetry, Electric discharges, Electrochemical electrodes, Electrochemical performance, Galvanostatic charge discharges, Graphene, Oxides, Polyaniline, Polyaniline composites, Reduced graphene oxides, Reduced graphene oxides (RGO), supercapacitor, Supercapacitor application, V3O7, Vanadium compounds, Vanadium oxides

Abstract:

Vanadium oxides (V 3 O 7 ) have been used as electrode materials for supercapacitor applications because of its multiple oxidation states. V 3 O 7 nanoparticles were coated on reduced graphene oxide (rGO) from a peroxovanadate-rGO composite by thermal microexplosive decomposition method. These V 3 O 7 decorated rGO were made composite with the flexible multi redox conducting polymer (Polyaniline). The performance of the composite materials as electrode for supercapacitors was analyzed in a 3-electrode cell, obtaining a specific capacitance of about 579 F g −1 at 0.2 A g −1 specific current. Cycling stability is one of the main barriers noticed in V 3 O 7 , which limits the practical performance of supercapacitors. This is overcome by modifying V 3 O 7 with rGO and polyaniline composites which produces good electrical contact resulting in higher capacitances and enhanced cycling stability when compared to pristine V 3 O 7 . A superior electrochemical performance and ultra-long cyclic stability of 94% over 2500 cycles was obtained through these developed electrodes. © 2019 Elsevier Ltd

Notes:

cited By 1

Cite this Research Publication

K. Y. Yasoda, Mikhaylov, A. A., Medvedev, A. G., Kumar, M. S., Lev, O., Prikhodchenko, P. V., and Batabyal, S. K., “Brush like polyaniline on vanadium oxide decorated reduced graphene oxide: Efficient electrode materials for supercapacitor”, Journal of Energy Storage, vol. 22, pp. 188-193, 2019.