Inal, I. Isil GurtenAkdemir, MuratKaya, Mustafa2024-12-242024-12-2420210360-31991879-3487https://doi.org/10.1016/j.ijhydene.2021.04.005https://hdl.handle.net/20.500.12604/6568In the present study, a Mn-supported catalyst material developed from Microcystis aeruginosa microalgae for hydrogen generation was tested as a supercapacitor electrode material for the first time. The catalyst material (MA-HCl-Mn) was examined for hydrogen generation through methanolysis of NaBH4, and it demonstrated good catalytic activity. Symmetric and asymmetric supercapacitor cells were prepared using MA-HCl-Mn as the electrode material. The electrochemical performance of the cells were evaluated by a two-electrode system using 2 M KOH as the electrolyte. The gravimetric capacitance of the symmetric and asymmetric cells found to be 40 F/g and 71 F/g, respectively. It was concluded that MA-HCl-Mn served as a sustainable, dual functional material showing a high catalytic activity for the hydrogen generation and a promising electrochemical performance as the supercapacitor electrode. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessMicrocystis aeruginosaCatalyst materialSupercapacitorsElectrode materialCap-catArticle46412153421541Q2WOS:000660297100005Q12-s2.0-8510710497810.1016/j.ijhydene.2021.04.005