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Korean Journal of Chemical Engineering, Vol.32, No.9, 1918-1923, 2015
New α-Zn2V2O7/carbon nanotube nanocomposite for supercapacitors
This study synthesized α-Zn2V2O7 nanopowders using a hydrothermal approach followed by annealing treatment. The resulting powders were then mixed with multi-walled carbon nanotubes and electrochemically characterized as new nanocomposite electrodes for supercapacitors. The structure and surface morphology of the powders were characterized by X-ray diffraction, transmission electron microscopy, and scanning electron microscopy. Plus, the capacitive behavior of the composite electrodes was evaluated by cyclic voltammetry and galvanostatic charge-discharge cycles in different molar aqueous KCl solutions. The α-Zn2V2O7/multi-walled carbon nanotube composite electrodes were prepared using three different ratios and screened for their use in supercapacitors. As a result, the α-Zn2V2O7/multi-walled carbon nanotube composite electrode with a 1 : 2 ratio was identified as the best electrode with a specific
capacitance value of 44.8 F g-1 in 0.5M KCl. Notwithstanding, all the tested composite electrodes demonstrated an excellent cycle stability and showed a less than 4% change in their specific capacitance values when compared to the initial values.
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[Cited By]
- Venugopal N, Kim WS, Yu T, Korean Journal of Chemical Engineering, 33(4), 1500, 2016
- Lee HJ, Jin EM, Jeong SM, Korean Chemical Engineering Research, 54(2), 157, 2016
- Rahman SF, Gobikhrisnan S, Gozan M, Jong GT, Park DH, Korean Chemical Engineering Research, 54(6), 817, 2016
- Lee WJ, Jeong SM, Lee H, Kim BJJ, An KH, Park YK, Jung SC, Korean Journal of Chemical Engineering, 34(11), 2993, 2017
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- Yoo JH, Yang IC, Kim MS, Jung JC, Polymer(Korea), 43(6), 838, 2019
- Hong JM, Kim HR, Lee JE, Ko YN, Park KT, Kim YE, Youn MH, Jeong SK, Park JW, Lee WH, Korean Journal of Chemical Engineering, 37(7), 1218, 2020
- Nulu A, Nulu V, Sohn KY, Korean Journal of Chemical Engineering, 37(10), 1795, 2020
- Nulu A, Nulu V, Moon JS, Sohn KY, Korean Journal of Chemical Engineering, 38(9), 1923, 2021
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