Designing of a Free-Standing Flexible Symmetric Electrode Material for Capacitive Deionization and Solid-State Supercapacitors
- Title
- Designing of a Free-Standing Flexible Symmetric Electrode Material for Capacitive Deionization and Solid-State Supercapacitors
- Creator
- Narayanan A.; Siddiqa A.; Kodihalli N.K.; Hegde G.; Nagaraju D.H.; Padaki M.
- Description
- In this work, a highly efficient free-standing flexible electrode material for capacitive deionization and supercapacitors was reported. The reported porous carbon shows a high surface area of 2070.4 m2 g-1 with a pore volume of 0.8208 cm3 g-1. The material exhibited a high specific capacitance of 357 F g-1 at 1 A g-1 in a two-electrode symmetric setup. A solid-state supercapacitor device has been fabricated with a total cell capacitance of 152.5 F g-1 at 1 A g-1 in a solid PVA/H2SO4 gel electrolyte with an energy density of 21.18 W h kg-1 at a 501.63 W kg-1power density. A long-run stability test was carried out up to 15,000 cycles at 5 A g-1 that showed capacitance retention of 99% with ?100% Coulombic efficiency. Furthermore, the electrosorption experiment was conducted by a flow-through test by coating on commercially available cellulose thread that was employed, which shows electrosorption ability up to 16.5 mg g-1 at 1.2 V in a 500 mg L-1 NaCl solution. Complete experiments were conducted with a proper procedure, provided by scientific approaches with analytical data. Thus, the reported electrode material showed bifunctional application for energy storage and environmental remediation. 2023 American Chemical Society.
- Source
- ACS Sustainable Chemistry and Engineering, Vol-11, No. 9, pp. 3750-3759.
- Date
- 2023-01-01
- Publisher
- American Chemical Society
- Subject
- capacitive deionization; electrosorption; energy density; energy storage; flexible symmetric device; supercapacitor
- Coverage
- Narayanan A., Centre for Nano and Material Sciences, JAIN (Deemed-to-be) University, Jain Global, Campus, Karnataka, Bangalore, 562112, India; Siddiqa A., Centre for Nano and Material Sciences, JAIN (Deemed-to-be) University, Jain Global, Campus, Karnataka, Bangalore, 562112, India; Kodihalli N.K., Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576 104, India; Hegde G., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India; Nagaraju D.H., Department of Chemistry, School of Applied Sciences, REVA University, Karnataka, Bangalore, 560064, India; Padaki M., Centre for Nano and Material Sciences, JAIN (Deemed-to-be) University, Jain Global, Campus, Karnataka, Bangalore, 562112, India
- Rights
- Restricted Access
- Relation
- ISSN: 21680485
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Narayanan A.; Siddiqa A.; Kodihalli N.K.; Hegde G.; Nagaraju D.H.; Padaki M., “Designing of a Free-Standing Flexible Symmetric Electrode Material for Capacitive Deionization and Solid-State Supercapacitors,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/14374.