Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 295, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2020.121931
Keywords
Bauhinia vahlii; Activated carbon; Specific capacitance; Supercapacitor; GCD; Co3O4
Funding
- Ministry of Science and Technology (Special Research Project) [MOST-108-2221-E-027-063]
- National Taipei University of Technology, Taiwan
- Deanery of Research and Development-Management Project Scheme of Bishop Heber College, Tiruchirappalli, India [3.12.2020 MRP/1016/2020 (BHC)]
- DST-FIST
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A highly porous sponge like cobalt oxide decorated Bauhinia vahlii dry fruits derived activated carbon composite (Co3O4@BVFC) was synthesized by hydrothermal method and tested as electrode for supercapacitor applications. The electrode displayed a specific capacitance value of 653 F/g at 1 A/g and showed 91% of capacitance retention even after 8000 GCD cycles, demonstrating its suitability as an electrode material for supercapacitors.
A highly porous sponge like cobalt oxide decorated Bauhinia vahlii dry fruits derived activated carbon composite (Co3O4@BVFC) was synthesized by hydrothermal method. The as-fabricated (Co3O4@BVFC/Ni foil) electrode was tested for supercapacitor (SC) applications.1 M KOH aqueous solution was used as electrolyte. The Cyclic Voltammetry (CV), Galvanostatic Charge - Discharge (GCD) techniques were adopted for the supercapacitor measurements. The as-fabricated Co3O4@BVFC/Ni electrode displayed a specific capacitance value of 653 F/g at 1 A/g. In addition, 91 % of capacitance retention achieved by Co3O4@ BVFC composite even after 8000 GCD cycles. Thus, Co3O4@BVFC with highly porous spongy microsphere morphology demonstrated itself as a suitable electrode material for supercapacitors.
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