CNTs Supercapacitor Based on the PVDF/PVA Gel Electrolytes
| Autor: | Masoud Mirzaee, Leila Fekri aval, Ghobad Behzadi pour |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Supercapacitor
Horizontal scan rate Materials science Scanning electron microscope General Engineering 02 engineering and technology Electrolyte Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Polyvinylidene fluoride 0104 chemical sciences law.invention Dielectric spectroscopy chemistry.chemical_compound Chemical engineering chemistry law General Materials Science Cyclic voltammetry 0210 nano-technology |
| Zdroj: | Recent Patents on Nanotechnology. 14:163-170 |
| ISSN: | 1872-2105 |
| DOI: | 10.2174/1872210513666191204111006 |
| Popis: | Background: In this paper, the supercapacitor based on the carbon nanotubes (CNTs) electrodes has been fabricated. Objective: The Polyvinylidene Fluoride (PVDF) and Polyvinyl Alcohol (PVA) were used as a gel electrolyte. Methods: The electrodes and electrolytes thin films were characterized by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The specific Capacitance (Cs) of the CNTs-based supercapacitor has been measured using the cyclic voltammetry and galvanostatic methods. For the scan rate, 20 mV s-1 the Cs of the CNTs-based supercapacitor was 173 F g-1. Results: Using the electrochemical impedance spectroscopy the Nyquist curve has been plotted. The reactance capacitance and the equivalent series resistance of the CNTs-based supercapacitor with PVDF/PVA gel electrolytes were 90 Ω and 25 Ω respectively. Conclusion: Also, few patents for the CNTs-based supercapacitor have been reviewed and cited. The CNTs-based supercapacitor proposed a new structure solid-state and flexible supercapacitor with high performance. |
| Databáze: | OpenAIRE |
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