Journal
ELECTROCHIMICA ACTA
Volume 190, Issue -, Pages 305-312Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.12.148
Keywords
MoS2 nanosheets; Raman mapping; binder free electrode; Nyquist plot; supercapacitors
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Funding
- National Research Foundation of Korea (NRF) - Korea Government GRANT [2013R1A2A2A01068926]
- National Research Foundation of Korea [2013R1A2A2A01068926] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, we demonstrated the preparation of nanoarchitectured MoS2 sheets grown on Mo foil via hydrothermal method and examined its use as a binder free electrode for supercapacitors. The formation of well crystalline MoS2 sheets on Mo foil was confirmed by laser Raman spectroscopy, Raman mapping, X-ray photoelectron spectroscopy, and field emission scanning electron microscopic analyses. The cyclic voltammetric studies suggested that the charge-storage mechanism in the MoS2/Mo electrodes is due to the contribution of combined pseudocapacitance with electrochemical double layer capacitance. The MoS2/Mo electrodes delivered a specific capacitance of about 192.7 F/g from the galvanostatic charge discharge analysis at a current density of 1 mA/cm(2). The experimental results suggested that the prepared MoS2/Mo binder free electrode will be a suitable candidate for electrochemical energy storage devices. (C) 2015 Elsevier Ltd. All rights reserved.
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