Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

In this study, we investigated that the activated carbon (AC)-based supercapacitor and introduced SIFSIX-3-Ni as a porous conducting additive to increase its electrochemical performances of AC/SIFSIX-3-Ni composite-based supercapacitor. The AC/SIFSIX-3-Ni composites are coated onto the aluminum subs...

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Bibliographic Details
Published in:Carbon Letters 2021-08, Vol.31 (4), p.635-642
Main Authors: Lee, Kyu Seok, Seo, Ye Ji, Jeong, Hyeon Taek
Format: Article
Language:English
Subjects:
Activated carbon
Aluminum
Capacitance
Composite materials
Electrochemical analysis
Electrochemical impedance spectroscopy
Electrochemistry
Electrodes
Electrolytes
Energy storage
Fuel cells
Graphene
Metal-organic frameworks
Nickel
Nitrates
Polyvinyl alcohol
Porous materials
Scanning electron microscopy
Spectroscopy
Substrates
Supercapacitors
Voltammetry
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Summary:In this study, we investigated that the activated carbon (AC)-based supercapacitor and introduced SIFSIX-3-Ni as a porous conducting additive to increase its electrochemical performances of AC/SIFSIX-3-Ni composite-based supercapacitor. The AC/SIFSIX-3-Ni composites are coated onto the aluminum substrate using the doctor blade method and conducted an ion-gel electrolyte to produce a symmetrical supercapacitor. The electrochemical properties of the AC/SIFSIX-3-Ni composite-based supercapacitor are evaluated through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge tests (GCD). The AC/SIFSIX-3-Ni composite-based supercapacitor showed reasonable capacitive behavior in various electrochemical measurements, including CV, EIS, and GCD. The highest specific capacitance of the AC/SIFSIX-3-Ni composite-based supercapacitor was 129 F g −1 at 20 mV s −1 .
ISSN:1976-4251
2233-4998
DOI:10.1007/s42823-020-00218-x