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Brush like polyaniline on vanadium oxide decorated reduced graphene oxide: Efficient electrode materials for supercapacitor

Publication Type : Journal Article

Publisher : Journal of Energy Storage

Source : Journal of Energy Storage Volume 22 Pages 188-193, 2019

Url : https://www.sciencedirect.com/science/article/abs/pii/S2352152X18307473

Campus : Coimbatore

School : School of Engineering, School of Physical Sciences

Center : Center for Industrial Research and Innovation (ACIRI)

Department : Sciences

Verified : No

Year : 2019

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

Cite this Research Publication : K Yamini Yasoda, Alexey A Mikhaylov, Alexander G Medvedev, M Sathish Kumar, Ovadia Lev, Petr V Prikhodchenko, Sudip K Batabyal, "Brush like polyaniline on vanadium oxide decorated reduced graphene oxide: efficient electrode materials for supercapacitor", Journal of Energy Storage Volume 22 Pages 188-193, 2019

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