Activated Cashew Carbon-Manganese Oxide Based Electrodes for Supercapacitor Applications
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
Published inScientific African
© 2023 The Author(s). Published by Elsevier B.V.
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. ...
ISSN Search the Publication Forum2468-2276
Publication in research information system
MetadataShow full item record
Additional information about fundingAuthors acknowledge support from the University of Ghana Carnegie Corporation of New York-Building a New Generation of Academics in Africa (BANGA-Africa) programme.
Showing items with similar title or keywords.
Sustainable Biomass-Derived Carbon Electrodes for Potassium and Aluminum Batteries : Conceptualizing the Key Parameters for Improved Performance Simões Dos Reis, Glaydson; Petnikota, Shaikshavali; Subramaniyam, Chandrasekar M.; Pequeno de Oliveira, Helinando; Larsson, Sylvia; Thyrel, Mikael; Lassi, Ulla; García Alvarado, Flaviano (MDPI AG, 2023)The development of sustainable, safe, low-cost, high energy and density power-density energy storage devices is most needed to electrify our modern needs to reach a carbon-neutral society by ~2050. Batteries are the backbones ...
From Norway Spruce Bark to Carbon Foams : Characterization, and Applications Varila, Toni; Brännström, Hanna; Kilpeläinen, Petri; Hellström, Jarkko; Romar, Henrik; Nurmi, Juha; Lassi, Ulla (Dept. of Wood and Paper Science, College of Natural Resources, North Carolina State University, 2020)Fresh bark from spruce Picea abies was milled and extracted with hot water. The extracts were purified in a number of steps in order to get tannin-extracts pure enough to prepare tannin-based carbon foams. The chemical ...
Activated carbon from hydrolysis lignin : Effect of activation method on carbon properties Bergna, Davide; Varila, Toni; Romar, Henrik; Lassi, Ulla (Elsevier BV, 2022)This study presents the effects of different activation methods to produce activated carbon from the hydrolysis lignin. Pretreatment of the feedstock with common mineral acids (HCL, HNO3, and H3PO4), different steam rates ...
Biomass-based composite catalysts for catalytic wet peroxide oxidation of bisphenol A : preparation and characterization studies Juhola, Riikka; Heponiemi, Anne; Tuomikoski, Sari; Hu, Tao; Prokkola, Hanna; Romar, Henrik; Lassi, Ulla (Elsevier BV, 2019)The wet granulation process was used to prepare new, efficient, and cost-effective granular biomass-based composite catalysts for catalytic wet peroxide oxidation (CWPO) of bisphenol A (BPA). The most stable composite ...
Production of ethyl lactate by activated carbon-supported Sn and Zn oxide catalysts utilizing lignocellulosic side streams Kupila, Riikka; Lappalainen, Katja; Hu, Tao; Heponiemi, Anne; Bergna, Davide; Lassi, Ulla (Elsevier, 2021)In this study, activated carbon-supported Sn and Zn oxide catalysts were prepared from hydrolysis lignin and used for the conversion of model solutions of trioses, hexoses, and lignocellulosic biomass hydrolysates to ethyl ...