Enhanced supercapacitor performance of hierarchical mesoporous sulfur-doped carbon particles from biomass waste for energy storage

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dc.contributor.authorYardım, Yavuz
dc.contributor.authorGenel, İlyas
dc.contributor.authorSaka, Cafer
dc.date.accessioned2024-12-24T19:09:50Z
dc.date.available2024-12-24T19:09:50Z
dc.date.issued2025
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this study, sulfur doping was carried out on activated carbon derived from biomass waste chestnut shells using a simple process involving activation with sulfuric acid to enhance the specific capacitance of supercapacitors (AC/CS). With the carbon surface becoming more polarized by the sulfonation process, it is aimed to achieve high wettability, which is important for supercapacitors, and to effectively transfer the electrolyte to the pores of carbon materials. The resulting activated carbon particles were characterized by EDS, FTIR, SEM, Raman, XPS, nitrogen adsorption and XRD analyses. EIS, CV and GCD analyses were used for electrochemical measurements. At a current density of 2 A/g, there is an approximately 1.68-fold increase in the capacitance value for the sulfonated AC/CS@GCE compared to the AC/CS@GCE electrode. The sulfonated AC/CS@GCE electrode showed ideal cycling stability with a capacitance retention rate of ?84.7% after 10000 cycles. The Rct values of AC/CS@GCE and sulfonated AC/CS@GCE electrodes were ?15.2 ? and ?113 ?, respectively. The AC/CS@GCE//AC/CS@GCE device can store 4.98 Wh/kg of electrochemical energy with a power density of 161.5 W/kg at a current density of 2 A/g. At a higher current density of 10 A/g, it can store 2.22 Wh/kg of electrochemical energy with a power density of 799.2 W/kg. © 2024 Hydrogen Energy Publications LLC
dc.identifier.doi10.1016/j.ijhydene.2024.12.058
dc.identifier.endpage393
dc.identifier.issn0360-3199
dc.identifier.scopus2-s2.0-85212095916
dc.identifier.scopusqualityQ1
dc.identifier.startpage383
dc.identifier.urihttps://doi.org10.1016/j.ijhydene.2024.12.058
dc.identifier.urihttps://hdl.handle.net/20.500.12604/3810
dc.identifier.volume99
dc.identifier.wosqualityQ1
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectBiomass waste
dc.subjectHeteroatom
dc.subjectMesoporous carbon
dc.subjectSulfonation process
dc.subjectSupercapacitor
dc.titleEnhanced supercapacitor performance of hierarchical mesoporous sulfur-doped carbon particles from biomass waste for energy storage
dc.typeArticle

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