Synthesis of MnOx/reduced graphene oxide nanocomposite as an anode electrode for lithium-ion batteries |
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| Affiliation: | 1. Department of Materials Science and Engineering, National Cheng Kung University, Tainan 701, Taiwan R.O.C.;2. Department of Greenergy, National University of Tainan, Tainan 701, Taiwan R.O.C.;3. Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan 70101, Taiwan R.O.C.;4. Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan R.O.C.;1. Solid State Physics Department, National Research Center, 12622 Dokki, Cairo, Egypt;2. Department of Physics, Faculty of Science (Girls), Al-Azhar University, 11753 Nasr City, Cairo, Egypt;1. Department of Materials Science and Engineering, National Cheng Kung University, Tainan 701, Taiwan;2. Department of Greenergy, Nation University of Tainan, Tainan 700, Taiwan;1. Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin, 300384, PR China;2. Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, PR China |
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| Abstract: | We report the high performance of the manganese oxide/reduced graphene oxide (MnOx/rGO) nanocomposite as an anode electrode of a lithium-ion battery. The composite is synthesized by a low temperature (83 °C) chemical solution reaction, and shows relatively high specific capacities (660 mAh g?1) after 50 cycles. For MnOx/rGO composites, the cycling stability is increased remarkably as compared to that seen with individual MnOx, and this is due to the synergistic effects of both the components in the composite. The rGO acts as a conductive buffer layer that suppresses the volume change of MnOx, and simultaneously promotes the conductivity of MnOx. The functional groups of graphene oxide facilitate MnOx formation at low temperature, and this retains the MnOx-graphene oxide connection, thus improving the capacity and cycling stability. |
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| Keywords: | Reduced graphene oxide Anode materials Li-ion batteries |
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