Biomass-derived porous activated carbon nanofibers from Sapindus trifoliatus nut shells for high-performance symmetric supercapacitor applications
Autor: | Ana L. F. de Barros, Rajendran Suresh Babu, Arumugam Sivasamy, Murugan Vinayagam |
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Rok vydání: | 2021 |
Předmět: |
Supercapacitor
Materials science Renewable Energy Sustainability and the Environment Process Chemistry and Technology Organic Chemistry Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Capacitance Energy storage 0104 chemical sciences Inorganic Chemistry Chemical engineering Specific surface area Nanofiber Materials Chemistry Ceramics and Composites medicine Specific energy 0210 nano-technology Porosity Activated carbon medicine.drug |
Zdroj: | Carbon Letters. 31:1133-1143 |
ISSN: | 2233-4998 1976-4251 |
Popis: | Cost-effective and sustainable high-performance supercapacitor material was successfully prepared from cellulosic waste (Sapindus trifoliatus nut shells) biomass-derived activated carbon (CBAC) by physical activation method. The CBAC displays nanofiber morphology, high specific surface area (786 m2/g), large pore volume (0.212 cm3 g−1) which are evaluated using FESEM, BET and possessed excellent electrochemical behavior analyzed through various electrochemical methods. Moreover, the assembled symmetric CBAC//CBAC device exhibits high specific capacitance of 240.8 F g−1 with current density of 0.2 A g−1 and it is maintained to 65.6 F g−1 at high current density of 2.0 A g−1. In addition, the symmetric device delivers an excellent specific energy maximum of over 30 Wh kg−1 at 400 W kg−1 of specific power and excellent cycling stability in long term over 5000 cycles. The operation of the device was tested by light-emitting diode. Hence, CBAC-based materials pave way for developing large-scale, low-cost materials for energy storage device applications. |
Databáze: | OpenAIRE |
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