Hybrid Reduced Graphene Oxide/Manganese Diselenide Cubes: A New Electrode Material for Supercapacitors

B. Balamuralitharan, S. N. Karthick, Suresh Kannan Balasingam, K. V. Hemalatha, Samayanan Selvam, J. Anandha Raj, Kandasamy Prabakar, Yongseok Jun, Hee Je Kim

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The integration of 2 D graphene nanosheets and layered transition-metal dichalcogenides has been recognized as one of the most extensive strategies for the synthesis of promising electrode materials for energy-storage devices. In this study, cubic manganese diselenide (MnSe 2 ) and hybrid reduced graphene oxide/MnSe 2 (G-MnSe 2 ) materials were synthesized by a facile hydrothermal method. Metallic selenium impurities are considered to be a major unwanted byproduct in this method. An effective means to remove such bulk chalcogenides is a key challenge. For the synthesis of the G-MnSe 2 hybrid material, we used a strategy in which the graphene oxide was mixed with manganese and selenium precursors. Surprisingly, the final G-MnSe 2 product contained a negligible amount of selenium impurity. The MnSe 2 and G-MnSe 2 hybrid materials were characterized in detail. For the first time, the electrochemical energy-storage behavior of MnSe 2 -based materials was assessed for supercapacitor applications. The specific capacitance of the MnSe 2 electrode was approximately 57.8 mF cm −2 , whereas the hybrid G-MnSe 2 electrode showed a much higher specific capacitance of 93.3 mF cm −2 at a scan rate of 1 mV s −1 . A symmetric cell made from the G-MnSe 2 hybrid material showed excellent long-term stability for 4500 cycles and approximately 106 % retention of its initial capacitance, which is impressive compared with the cycle life of the MnSe 2 -based symmetric cell (80 % capacitance retention at the 4500th cycle).

Original languageEnglish
Pages (from-to)1953-1962
Number of pages10
JournalEnergy Technology
Volume5
Issue number11
DOIs
Publication statusPublished - 2017 Nov 1
Externally publishedYes

Fingerprint

Manganese oxide
Graphene
Electrodes
Oxides
Hybrid materials
Selenium
Capacitance
Energy storage
Manganese
Impurities
Chalcogenides
Supercapacitor
Nanosheets
Transition metals
Byproducts
Life cycle

Keywords

  • electrodes
  • graphene
  • hydrothermal synthesis
  • manganese
  • selenium

ASJC Scopus subject areas

  • Energy(all)

Cite this

Balamuralitharan, B., Karthick, S. N., Balasingam, S. K., Hemalatha, K. V., Selvam, S., Raj, J. A., ... Kim, H. J. (2017). Hybrid Reduced Graphene Oxide/Manganese Diselenide Cubes: A New Electrode Material for Supercapacitors. Energy Technology, 5(11), 1953-1962. https://doi.org/10.1002/ente.201700097

Hybrid Reduced Graphene Oxide/Manganese Diselenide Cubes : A New Electrode Material for Supercapacitors. / Balamuralitharan, B.; Karthick, S. N.; Balasingam, Suresh Kannan; Hemalatha, K. V.; Selvam, Samayanan; Raj, J. Anandha; Prabakar, Kandasamy; Jun, Yongseok; Kim, Hee Je.

In: Energy Technology, Vol. 5, No. 11, 01.11.2017, p. 1953-1962.

Research output: Contribution to journalArticle

Balamuralitharan, B, Karthick, SN, Balasingam, SK, Hemalatha, KV, Selvam, S, Raj, JA, Prabakar, K, Jun, Y & Kim, HJ 2017, 'Hybrid Reduced Graphene Oxide/Manganese Diselenide Cubes: A New Electrode Material for Supercapacitors', Energy Technology, vol. 5, no. 11, pp. 1953-1962. https://doi.org/10.1002/ente.201700097
Balamuralitharan B, Karthick SN, Balasingam SK, Hemalatha KV, Selvam S, Raj JA et al. Hybrid Reduced Graphene Oxide/Manganese Diselenide Cubes: A New Electrode Material for Supercapacitors. Energy Technology. 2017 Nov 1;5(11):1953-1962. https://doi.org/10.1002/ente.201700097
Balamuralitharan, B. ; Karthick, S. N. ; Balasingam, Suresh Kannan ; Hemalatha, K. V. ; Selvam, Samayanan ; Raj, J. Anandha ; Prabakar, Kandasamy ; Jun, Yongseok ; Kim, Hee Je. / Hybrid Reduced Graphene Oxide/Manganese Diselenide Cubes : A New Electrode Material for Supercapacitors. In: Energy Technology. 2017 ; Vol. 5, No. 11. pp. 1953-1962.
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