Electrochemical Performance of Molybdenum Disulfide Supercapacitor Electrode in Potassium Hydroxide and Sodium Sulfate Electrolytes
Raja Noor Amalina Raja Seman1, Mohd Asyadi Azam2, Mohd Fareezuan Abdul Aziz3, Raja Izamshah4, Mohd Shahir Kasim5
1Mohd Asyadi Azam*, Fakulti Kejuruteraan Pembuatan, UTeM, Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia.
2Raja Noor Amalina Raja Seman, Fakulti Kejuruteraan Pembuatan, UTeM, Malaysia.
3Mohd Fareezuan Abdul Aziz , Fakulti Kejuruteraan Pembuatan, UTeM, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia.
4Raja Izamshah, Fakulti Kejuruteraan Pembuatan, UTeM, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia.
5Mohd Shahir Kasim, Fakulti Kejuruteraan Pembuatan, UTeM, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia.
Manuscript received on February 28, 2020. | Revised Manuscript received on March 22, 2020. | Manuscript published on March 30, 2020. | PP: 5499-5403 | Volume-8 Issue-6, March 2020. | Retrieval Number: F7602038620/2020©BEIESP | DOI: 10.35940/ijrte.F7602.038620
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Two-dimensional materials have attracted growing interest in research because of their specific electronic, physical, optical and mechanical properties. Molybdenum disulfide was theoretically investigated as novel energy storage materials because of its unusual physicochemical properties. This paper describes easy approach to fabricate molybdenum disulfide (MoS2) electrode using slurry technique on conducting substrate namely Ni foam as current collector for supercapacitor device application. This MoS2 electrode exhibits relatively good specific gravimetric capacitance, (Csp) of 11.12 to 12.38 Fg-1 at 1 mVs-1 scan rate. Moreover, galvanostatic charge-discharge displays symmetrical triangular curves which attributed to the fast charge-discharge process (in seconds). These results show that MoS2 active material can be charged and discharged reversibly between 0.2 and 1.0 V (in 6 M KOH) and between 0.3 and 1.0 V (in 0.5 M Na2SO4). From cyclic stability test exhibits capacitance retention of up to 83% and 64% after 1000 cycles in 6 M KOH and 0.5 M Na2SO4, respectively. The MoS2 electrode is thus a promising material for future application of the supercapacitor.
Keywords: Aqueous Electrolytes, Electrochemical Performance, Molybdenum Disulfide, Supercapacitor.
Scope of the Article: High Performance Computing.