Electrochemical energy storage performance of carbon nanofiber electrodes derived from 6FDA-durene
| Autor: | Nimanka P. Panapitiya, John P. Ferraris, Kyung-Hye Jung |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Carbon nanofiber Mechanical Engineering Bioengineering 02 engineering and technology General Chemistry Electrolyte Thermal treatment 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Electrospinning 0104 chemical sciences Chemical engineering Mechanics of Materials Nanofiber Desorption Electrode General Materials Science Electrical and Electronic Engineering 0210 nano-technology Porosity |
| Zdroj: | Nanotechnology. 29:275701 |
| ISSN: | 1361-6528 0957-4484 |
| DOI: | 10.1088/1361-6528/aabc9c |
| Popis: | Carbon nanofibers (CNFs) are promising electrode materials for electrochemical double layer capacitors due to their high porosity and electrical conductivity. CNFs were prepared by electrospinning and subsequent thermal treatment of a new precursor polymer, 6FDA-durene, without the addition of pore generating agents. The conversion of precursor nanofibers into CNFs was confirmed using Raman spectroscopy. CNFs were activated and annealed, and nitrogen adsorption/desorption measurements were conducted to determine surface area and porosity. These activated/annealed CNFs were used as binderless electrodes in coin cells with an ionic liquid electrolyte. The devices displayed a specific capacitance of 128 F g−1, an energy density of 63.4 Wh kg−1 (at 1 A g−1), and a power density of 11.0 KW kg−1 (at 7 A g−1). |
| Databáze: | OpenAIRE |
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