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Carbon based manganese oxide ( MnO2, MnO2/ MWCNT and MnO2/ rGO) composite electrodes for high‑stability Li‑ion batteries KCI 등재

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  • URLhttps://db.koreascholar.com/Article/Detail/435051
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Carbon Letters (Carbon letters)
한국탄소학회 (Korean Carbon Society)
초록

Synthesis of extremely competent materials is of great interest in addressing the energy storage concerns. Manganese oxide nanowires ( MnO2 NWs) are prepared in situ with multiwall carbon nanotubes (MWCNT) and graphene oxide (GO) using a simple and effective hydrothermal method. Powder XRD, Raman and XPS analysis are utilized to examine the structural characteristics and chemical state of composites. The initial specific discharge capacity of pure MnO2 NWs, MnO2 NWs/ MWCNT and MnO2 NWs/rGO composites are 1225, 1589 and 1685 mAh/g, respectively. The MnO2 NWs/MWCNT and MnO2 NWs/rGO composites showed stable behavior with a specific capacity of 957 and 1108 mAh/g, respectively, after 60 cycles. Moreover, MnO2 NWs/rGO composite sustained a specific capacity of 784 mAh/g, even after 250 cycles at a current density of 1 A/g showing outstanding cycling stability.

목차
Carbon based manganese oxide (MnO2, MnO2MWCNT and MnO2rGO) composite electrodes for high-stability Li-ion batteries
    Abstract
        Graphical abstract
    1 Introduction
    2 Experimental
        2.1 Synthesis of ultralong MnO2 NW composites
    3 Results and discussion
    4 Conclusions
    Acknowledgements 
    References
저자
  • Pitcheri Rosaiah(Department of Physics, Paavai Engineering College, Namakkal, Tamil Nadu 637018, India)
  • Ponnusamy Divya(Department of Physics, Paavai Engineering College, Namakkal, Tamil Nadu 637018, India)
  • Sangaraju Sambasivam(National Water and Energy Center, United Arab Emirates University, Al Ain 15551, UAE)
  • Ammar M. Tighezza(Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, 11451 Riyadh, Saudi Arabia)
  • V. Kalaivani(Department of Sciences and Humanities, Sreenivasa Institute of Technology and Management Studies (Autonomous), Chittoor, Andhra Pradesh 517 127, India)
  • A. Muthukrishnaraj(Department of Science and Humanities (Chemistry), Faculty of Engineering, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India)
  • Manikandan Ayyar(Department of Chemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India, Centre for Material Chemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India, Department of Chemistry, Bharath Institute of Higher Education and Research (BIHER), Chennai, Tamil Nadu 600 073, India) Corresponding author
  • Theophile Niyitanga(School of Materials Science and Engineering, Yeungnam University, 280 Daehak‑Ro, Gyeongsan 38541, South Korea)
  • Haekyoung Kim(School of Materials Science and Engineering, Yeungnam University, 280 Daehak‑Ro, Gyeongsan 38541, South Korea)