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http://dx.doi.org/10.12925/jkocs.2020.37.2.260

Fabrication and analysis of electrochemical performance for energy storage device composed of metal-organic framework(MOF)/porous activated carbon composite material  

Lee, Kyu Seok (Division of Energy and Environmental Engineering, Daejin University)
Jeong, Hyeon Taek (Division of Energy and Environmental Engineering, Daejin University)
Publication Information
Journal of the Korean Applied Science and Technology / v.37, no.2, 2020 , pp. 260-267 More about this Journal
Abstract
In this study, supercapacitor based on the all solid state electrolyte with PVA(polyvinyl alcohol), ionic liquid as a BMIMBF4(1-buthyl-3-methylimidazolium tetrafluoroborate) and activated carbon/Ni-MOF composite was fabricated and characterized its electrochemical properties with function of MOF. In order to analysis and comparison that electrochemical performances [including cyclic voltammetry(CV), electrochemical impedance spectroscopy(EIS) and galvanostatic charge/discharge test] of prepared supercapacitor based on activated carbon/Ni-MOF composite and all solid state electrolyte. As a result, specific capacitance of the supercapacitor without Ni-MOF was 380 F/g which value decreased to 340 F/g after adding Ni-MOF to activated carbon as a electrode material. This result exhibited that decreased electrochemical property of the supercapacitor effected on physical hinderance in the electrode. In further, it needs to optimization of the Ni-MOF amount (wt%) in the electrode composite to maximize its electrochemical performances.
Keywords
Ion gel; ionic liquid; supercapacitor; activated carbon; metal-organic framework(MOF);
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