Biomass-based metal-free catalyst as a promising supercapacitor electrode for energy storage

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dc.authoridakdemir, Murat/0000-0001-9235-1913
dc.authoridImanova, Gunel/0000-0003-3275-300X
dc.authoridKivrak, Hilal/0000-0001-8001-7854
dc.contributor.authorKarakas, Duygu Elma
dc.contributor.authorAkdemir, Murat
dc.contributor.authorImanova, Gunel T.
dc.contributor.authorKivrak, Hilal Demir
dc.contributor.authorHoroz, Sabit
dc.contributor.authorKaya, Mustafa
dc.date.accessioned2024-12-24T19:24:40Z
dc.date.available2024-12-24T19:24:40Z
dc.date.issued2022
dc.departmentSiirt Üniversitesi
dc.description.abstractIn present study, biomass doped H3PO4-Cat, named as STW-H3PO4-Cat, was used as a catalyst in the methanolysis of sodium borohydride (NaBH4). Spent tea waste (STW) was used for the first time in this study as biomass. The generated existing catalyst was also employed as an active supercapacitor material, demonstrating its dual function. To identify the most active catalyst in the methanolysis of sodium borohydride, the catalyst was functionalized in different H3PO4 concentrations (1-7 M), and different annealing temperatures (200-500 degrees C) and different annealing times (20-80 min). Optimum parameters were determined as 7 M H3PO4, 400 degrees C, and 40 min. The maximum hydrogen production (HPR) value and the activation energy (E-a) were determined as 76,640 mL min(-1) g cat(-1) and 12.03 kJ mol(-1). When the catalyst was investigated in terms of the supercapacitor, the electrode's capacitance at 1 A/g current intensity was found to be 158 F/g utilizing the charge-discharge curve. The catalyst with optimum conditions was structurally and morphologically characterized by Fourier Transform Infrared (FTIR), x-ray diffraction (XRD), and scanning electron microscope (SEM) measurements, respectively.
dc.identifier.doi10.1007/s10854-022-08669-w
dc.identifier.endpage18123
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue22
dc.identifier.scopus2-s2.0-85134472327
dc.identifier.scopusqualityQ2
dc.identifier.startpage18111
dc.identifier.urihttps://doi.org/10.1007/s10854-022-08669-w
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6086
dc.identifier.volume33
dc.identifier.wosWOS:000827367500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Materials Science-Materials in Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.titleBiomass-based metal-free catalyst as a promising supercapacitor electrode for energy storage
dc.typeArticle

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