Molten salt synthesis of nitrogen-doped hierarchical porous carbon from plantain peels for high-performance supercapacitor

Simple item page
dc.contributor.authorNanzumani, Nashiru Mahadeen
dc.contributor.authorAgyemang, Frank Ofori
dc.contributor.authorMensah-Darkwa, Kwadwo
dc.contributor.authorAppiah, Eugene Sefa
dc.contributor.authorArthur, Emmanuel Kwesi
dc.contributor.authorGikunoo, Emmanuel
dc.contributor.authorKoomson, Bennetta
dc.contributor.authorJadhav, Amol R.
dc.contributor.authorRaji, Akeem
dc.date.accessioned2024-02-14T12:28:57Z
dc.date.available2024-02-14T12:28:57Z
dc.date.issued2022-09-01
dc.description.abstractThis work employs a non-corrosive and non-toxic molten salt combination of NaCl and KCl as an activation agent in an air environment to synthesize nitrogen-doped hierarchical porous carbon from plantain peels at 800 °C for supercapacitor application. Due to the synergistic effect of nitrogen doping, the synthesized nitrogen- doped activated unripe porous carbon (AUPN) has a hierarchical (micro-meso-macropores) porous structure and a high surface area of 959 m2/g, providing sufficient active sites for charge storage, rapid electrolyte and ionic mobility. X-ray diffraction and Raman spectroscopy analysis revealed the formation of a carbon product with a limited degree of graphitization and the crystallite size (La), which is valuable for evaluating the defects caused by nitrogen doping. In a three-electrode cell with a 6 M KOH electrolyte, AUPN recorded a specific capacitance of 550 F/g at 1 A/g. After 1000 cycles, capacitance retention was 99% at 4 A/g. Compared to other reported porous carbon materials, the overall electrochemical performance of AUPN is superior. This is due to the abundant nitrogen-doping, which introduces pseudocapacitance and increases the surface wettability of the porous carbon, resulting in a decrease in ionic-transport resistance. These findings indicate that this green and scalable technique is a potential synthesis method for producing porous carbon materials for energy storage applications.
dc.description.sponsorshipThe KEEP CoE Innovation Fund, College of Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana, provided financial support for this work.
dc.identifier.citationNashiru Mahadeen Nanzumani, Frank Ofori Agyemang, Kwadwo Mensah-Darkwa, Eugene Sefa Appiah, Emmanuel Kwesi Arthur, Emmanuel Gikunoo, Bennetta Koomson, Amol R. Jadhav, Akeem Raji, Molten salt synthesis of nitrogen-doped hierarchical porous carbon from plantain peels for high-performance supercapacitor, Journal of Electroanalytical Chemistry, Volume 920, 2022, 116645
dc.identifier.issn1572-6657
dc.identifier.urihttps://ir.knust.edu.gh/handle/123456789/15474
dc.language.isoen_US
dc.publisherJournal of Electroanalytical Chemistry
dc.titleMolten salt synthesis of nitrogen-doped hierarchical porous carbon from plantain peels for high-performance supercapacitor
dc.typeArticle
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Molten salt synthesis of nitrogen-doped hierarchical porous carbon from plantain peels for high-performance supercapacitor.pdf
Size:
3.68 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed to upon submission
Description:
Download
Collections
Articles