Investigation of a novel Defatted Spent Coffee Ground (DSCG)-supported Ni catalyst for fuel cell and supercapacitor applications

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dc.authoridKivrak, Hilal/0000-0001-8001-7854
dc.authoridBOGREKCI, Ismail/0000-0002-9494-5405
dc.contributor.authorHansu, Tulin Avci
dc.contributor.authorAl-Samaraae, R. R.
dc.contributor.authorAtelge, M. R.
dc.contributor.authorKaya, Mustafa
dc.contributor.authorKivrak, Hilal Demir
dc.contributor.authorBogrekci, Ismail
dc.contributor.authorYildiz, Yalcin Sevki
dc.date.accessioned2024-12-24T19:27:34Z
dc.date.available2024-12-24T19:27:34Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractWith the increase in energy demand, a material that can be used in fuel cell applications has been developed for both energy storage and the use of alternative energy sources to fossil fuels. In this study, a new Defatted Spent Coffee Ground (DSCG)-based electrode material was synthesized for two different application areas. A new electrocatalyst synthesis was carried out by subjecting DSCG to chemical activation and carbonization processes. The glycerol electrooxidation performances of the catalysts synthesized at 10-50 % Ni loading rates were investigated by CV measurements. 30 % Ni-DSCG catalyst exhibited the highest catalytic activity with 3.290 mA/ cm2.As 2 .As a result of the electrochemical measurements, 30 % Ni-DSCG catalyst with the best catalytic performance was used as the supercapacitor electrode material. The electrochemical performances of the produced super- capacitor electrodes were tested at room temperature using galvanostatic charge-discharge (GCD), Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques, and the capacity and stability of the electrodes were calculated as a result of the findings. In the calculations, the energy and power density of the 30 % Ni-DSCG supercapacitor electrode were calculated as 22.897 Wh kg(- 1) , 841.114 W kg(- 1) , respectively. The supercapacitor electrode capacitance was found to be 50.48 F/g. Its cyclic capacity was found to be 90 %. It showed that the DSCG-based synthesized electrocatalyst could be a good option for energy storage technology as EDLC electrode material and fuel cell applications as anode catalyst due to its good conductivity, superior cyclic stability, environmental friendliness and low cost.
dc.description.sponsorshipUnit of Scientific Research Project Coordination (Bilimsel Arastirma Projeleri Koordinatorlugu, BAP) at Erciyes University, Kayseri, Turkiye [FCD-2022-11231]
dc.description.sponsorshipThe authors would like to acknowledge The Unit of Scientific Research Project Coordination (Bilimsel Arastirma Projeleri Koordinatorlugu, BAP) at Erciyes University, Kayseri, Turkiye for the financial support under the University Project: FCD-2022-11231 (Multidisciplinary Research Project) (Cok Disiplinli Arastirma Proje) (Project Title: Development of a small-scale SCG-based biorefinery to produce biofuels and value-added products: pathways towards green environment and circular bioeconomy).
dc.identifier.doi10.1016/j.psep.2024.08.093
dc.identifier.endpage768
dc.identifier.issn0957-5820
dc.identifier.issn1744-3598
dc.identifier.scopus2-s2.0-85203457112
dc.identifier.scopusqualityQ1
dc.identifier.startpage760
dc.identifier.urihttps://doi.org/10.1016/j.psep.2024.08.093
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6705
dc.identifier.volume191
dc.identifier.wosWOS:001314126600001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofProcess Safety and Environmental Protection
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectDSCG
dc.subjectSupercapacitor
dc.subjectElectrooxidation
dc.subjectElectrocatalyst
dc.titleInvestigation of a novel Defatted Spent Coffee Ground (DSCG)-supported Ni catalyst for fuel cell and supercapacitor applications
dc.typeArticle

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