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Hydrothermal synthesis of reduced graphene oxide-Mn3O4 nanocomposite as an efficient electrode materials for supercapacitors |
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| Authors: | Hidayat Ullah Shah Fengping Wang Muhammad Sufyan Javed Nusrat Shaheen Muhammad Saleem Yan Li |
| Affiliation: | 1. Department of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, PR China;2. Department of Applied Physics, Chongqing University, Chongqing 400044, PR China;3. Department of Physics, COMSATS Institute of Information Technology, Lahore 54000, Pakistan;4. Department of Physics, Khwaja Freed University of Engineering and Information Technology, Rahim Yar-Khan 64200, Pakistan |
| Abstract: | Mn3O4 nanoparticles (NPs) are decorated with reduced graphene oxide nanosheets (rGO-Mn3O4) through a facile and eco-friendly hydrothermal method. The as-synthesized composite was characterized by XRD, SEM, TEM and Raman spectroscopy. The electrochemical properties of (rGO-Mn3O4) nanocomposite were studied as electrode materials for supercapacitors. The rGO-Mn3O4 nanocomposite exhibit high specific capacitance of 457 Fg?1 at 1.0 A/g in 1 M Na2SO4 aqueous electrolyte. The rGO-Mn3O4 exhibits good capacitance retention by achieving 91.6% of its initial capacitance after 5000 cycles. The excellent electrochemical performance is attributed to the increased electrode conductivity in the presence of graphene network. |
| Keywords: | Graphene oxide Nanocomposites Nanoparticles Supercapacitors |
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