A1 Journal article (refereed)
Activated Cashew Carbon-Manganese Oxide Based Electrodes for Supercapacitor Applications (2023)
Boamah, R., Agyei-Tuffour, B., Dodoo-Arhin, D., Nyankson, E., Brobbey, K. J., Obada, D., & Mohammed, L. (2023). Activated Cashew Carbon-Manganese Oxide Based Electrodes for Supercapacitor Applications. Scientific African, 20, Article e01647. https://doi.org/10.1016/j.sciaf.2023.e01647
JYU authors or editors
Publication details
All authors or editors: Boamah, Rebecca; Agyei-Tuffour, Benjamin; Dodoo-Arhin, David; Nyankson, Emmanuel; Brobbey, Kofi J.; Obada, David; Mohammed, Latifatu
Journal or series: Scientific African
eISSN: 2468-2276
Publication year: 2023
Publication date: 21/03/2023
Volume: 20
Article number: e01647
Publisher: Elsevier BV
Publication country: Netherlands
Publication language: English
DOI: https://doi.org/10.1016/j.sciaf.2023.e01647
Publication open access: Openly available
Publication channel open access: Open Access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/86159
Abstract
The current global energy challenge which affects most developing countries in particular, is of major source of concern today. The availability of less expensive techniques of storing excess generated energy is critical to the success of the renewable energy roadmaps implementation. In this study, hydrothermal and chemical leaching methods have been used to synthesize MnO2 nanoparticles using KMnO4 and MnSO4 as precursors at 140 °C and from natural local manganese ore. Activated Carbon (ACF) have also been produced from agricultural Cashew biomass waste, through a physical carbonization and KOH activation process using temperatures of 700 °C – 900 °C for periods between 1-2 hours. The as-prepared materials have been characterized via XRD, Raman, FTIR, SEM. Electrochemical performance measurements (CV, EIS and GCD) were carried out on the prepared electrodes. The specific capacitance values obtained were in the range of 2.8 F/g - 6.5 F/g at different scan rates of 20 mV -50 mV respectively in a potential range of -0.4 to +0.4 V and -0.4 to +0.6 V for the various types of electrodes.
Keywords: supercapacitors; electrodes; activated carbon; biomass (industry); agricultural wastes; electrochemistry
Free keywords: supercapacitor; activated carbon; agrowaste; characterization; electrochemistry
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2023
Preliminary JUFO rating: 1