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dc.contributor.authorAbbas, Aumberen_US
dc.contributor.authorEng, Xue Eren_US
dc.contributor.authorEe, Nicholasen_US
dc.contributor.authorSaleem, Faisalen_US
dc.contributor.authorWu, Danen_US
dc.contributor.authorChen, Wenqianen_US
dc.contributor.authorHandayani, Murnien_US
dc.contributor.authorTabish, Tanver A.en_US
dc.contributor.authorWai, Nyunten_US
dc.contributor.authorLim, Tuti Marianaen_US
dc.identifier.citationAbbas, A., Eng, X. E., Ee, N., Saleem, F., Wu, D., Chen, W., Handayani, M., Tabish, T. A., Wai, N. & Lim, T. M. (2021). Development of reduced graphene oxide from biowaste as an electrode material for vanadium redox flow battery. Journal of Energy Storage, 41, 102848-.
dc.description.abstractVanadium redox flow battery (VRB) is a renowned electrochemical energy storage device for large scale applications owing to its promising storage capability, long life and safety. However, the lower efficiency of VRB system combined with the non-renewable graphite-based electrodes have limited the widespread of VRB commercial market. This study investigates the feasibility of converting renewable biomass waste, namely spent coffee beans, into reduced graphene oxide (rGO) as an alternate electrode material for VRB system. As prepared rGO has been thoroughly characterised and employed to design a modified electrode for VRB. The electrochemical performance of rGO based modified electrodes has been comprehensively examined using electrochemical impedance spectroscopy, cyclic voltammetry and galvanostatic charge-discharge cycling. The results demonstrate that the energy, voltage and coulombic efficiencies of rGO based electrodes are over 90%, which are comparable to that of commercially used pristine graphite electrode. Moreover, a stable cyclic performance is observed for rGO based electrodes over a total of 65 cycles owing to their high electrocatalytic activity and improved charge transfer. The stable performance and comparable efficiency present promising potential of biomass derived rGO as a low-cost replacement to the commercial graphite as an electrode material for VRB applications.en_US
dc.description.sponsorshipEconomic Development Board (EDB)en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.relation.ispartofJournal of Energy Storageen_US
dc.rights© 2021 Elsevier Ltd. All rights reserved.en_US
dc.subjectEngineering::Civil engineeringen_US
dc.titleDevelopment of reduced graphene oxide from biowaste as an electrode material for vanadium redox flow batteryen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en_US
dc.contributor.researchAdvanced Environmental Biotechnology Centre (AEBC)en_US
dc.subject.keywordsReduced Graphene Oxideen_US
dc.subject.keywordsBiomass Wasteen_US
dc.description.acknowledgementThe authors gratefully acknowledge the financial support from the Residues and Resource Reclamation Centre (R3C), Nanyang Environment & Water Research Institute, Nanyang Technological University, Singapore and Economic Development Board, Singapore.en_US
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