Examination of high porosity activated carbon obtained from dehydration of white sugar for electrochemical capacitor applications
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Date
Authors
Oyedotun, Kabir Oyeniran
Barzegar, Farshad
Mirghni, Abdulmajid Abdallah
Khaleed, Abubakar A.
Masikhwa, T.M. (Tshifhiwa)
Manyala, Ncholu I.
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Journal ISSN
Volume Title
Publisher
American Chemical Society
Abstract
In this research study, we have presented a simple two-step synthesis path to producing a cost-effective, high-porosity carbon material via acidic dehydration of white sugar. The electrochemical behavior of the activated sugar-based carbon material (ASC), activated at 400 °C (ASC 400) and adopted as a supercapacitor electrode in a symmetric device, demonstrated a limit specific capacitance of 242.67 F g–1 at 1 A g–1. The device also demonstrated a good efficacy as an established material for supercapacitors suitable for high-power applications with a satisfactory energy density of 19 Wh kg–1 and a power density of 750 W kg–1 at a gravimetric specific current of 1 A g–1. The results obtained provide a potential route to converting cheap refined biomass sources into highly porous nanostructured materials for energy-storage device applications.
Description
Keywords
Carbonization, Supercapacitor (SC), Activated sugar-based carbon material (ASC), H2SO4, Na2SO4, Specific capacitance, Specific surface area, White sugar
Sustainable Development Goals
Citation
Oyedotun, K.O., Barzegar, F., Mirghni, A.A. et al. 2019, 'Examination of high porosity activated carbon obtained from dehydration of white sugar for electrochemical capacitor applications', ACS Sustainable Chemistry and Engineering, vol. 7, no. 1, pp. 537-546.