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Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
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Cellulose graphitic carbon directed iron oxide interfaced polypyrrole electrode materials for high performance
Ramasubba Reddy Palem1, Mruthyunjayachari Chattanahalli Devendrachari2, Ganesh Shimoga3
1Department of Medical Biotechnology, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, Gyeonggi 10326, Republic of Korea.
International Journal of Biological Macromolecules
|October 4, 2023
Summary
Researchers developed a novel supercapacitor electrode from cornhusk waste, achieving high energy storage capacity. This sustainable material offers excellent performance for future green energy devices.
Area of Science:
- Materials Science
- Electrochemistry
- Renewable Energy
Background:
- Growing demand for sustainable energy storage solutions.
- Need for cost-effective and high-performance electrode materials for supercapacitors.
- Utilization of biomass waste for advanced material development.
Purpose of the Study:
- To design and synthesize a novel nanocomposite electrode material for supercapacitors.
- To investigate the electrochemical performance of the developed material derived from cornhusk waste.
- To evaluate the potential of this material in energy storage applications.
Main Methods:
- Porous cellulose graphitic carbon (CC) derived from cornhusk via pyrolysis.
- In situ decoration with α-Fe2O3 (CCIO) and subsequent polypyrrole coating (CCIOP).
- Characterization using XRD, Raman, FTIR, FE-SEM/EDX, FE-TEM, XPS, and BET analysis.
- Electrochemical testing in a three-electrode system and asymmetric supercapacitor (ASC) configuration.
Main Results:
- The CCIOP nanocomposite electrode achieved a specific capacitance of 290.9 F/g.
- Excellent capacity retention of 79.1% at 10 A/g in a three-electrode system.
- The fabricated ASC demonstrated remarkable capacity retention of 88.7% and 98.8% coulombic efficiency after 3000 cycles.
Conclusions:
- Successful design of a high-performance supercapacitor electrode from bio-waste cornhusk.
- Demonstrated the potential of cellulose-derived carbon and iron oxide/polypyrrole composites for energy storage.
- Highlights a sustainable pathway for developing advanced electrode materials for clean energy.
