Sal wood sawdust derived highly mesoporous carbon as prospective electrode material for vanadium redox flow batteries
By Maharjan, Makhan; Wai, Nyunt; Veksha, Andrei; Giannis, Apostolos; Lim, Tuti Mariana; Lisak, Grzegorz
Published in Journal of Electroanalytical Chemistry
2019
Abstract
This work reports the development of a prospective electrode material for the use in vanadium redox flow batteries. The developed electrode material was a high surface area activated carbon (1857m2g?1) with a large mesoporosity (1280m2g?1) that was derived using biomass residues, Sal wood sawdust (Shorea robusta), as a feedstock. The physico-chemical and electrochemical properties of Sal wood sawdust activated carbon were extensively characterized applying cyclic voltammetry and electrochemical impedance spectroscopy. The graphite plate electrode based on Sal wood sawdust activated carbon exhibited higher electro-catalytic activity and lower charge transfer resistance towards both positive and negative redox couples than when applying pristine graphite plate electrode. Further investigations on the application of static cell at higher current densities (20
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