A Novel Tea factory waste metal-free catalyst as promising supercapacitor electrode for hydrogen production and energy storage: A dual functional material

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dc.authoridAtelge, Muhamed Rasit/0000-0002-0613-2501
dc.contributor.authorOzarslan, Saliha
dc.contributor.authorAtelge, M. Rasit
dc.contributor.authorKaya, Mustafa
dc.contributor.authorUnalan, Sebahattin
dc.date.accessioned2024-12-24T19:27:06Z
dc.date.available2024-12-24T19:27:06Z
dc.date.issued2021
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this study, the catalyst produced from tea factory waste (TFW) was used for the first time for hydrogen production by methanolysis of sodium borohydride (NaBH4). The produced material had a dual function as both catalyst and supercapacitor; therefore, it was named 'cap-cat'(capacitor-catalyst) by us. In this context, TFW was treated with acetic acid for 24 h at 80 degrees C. The sample was then subjected to combustion in the oven to synthesize the catalyst. Afterward, the most efficient TFW-CH3COOH catalyst was synthesized by evaluating different acid ratios, burning temperatures and times. The best conditions for the acetic acid ratio, burning temperature, and time were found out 3 M, 300 degrees C, and 60 min. The characterization of the catalyst was done using SEM-EDX, FTIR, XRD analysis. Hydrogen generation experiments from NaBH4 by methanolysis were performed at various catalyst concentrations in the range of 0.05-0.2 g, diverse NaBH4 ratio of 1 to 7.5%, and at different reaction temperatures (30-60 degrees C). The HGR of the synthesized catalyst was recorded as 3096.4, 8367.5, 11227.9, and 23,507 mLmin(-1)g(cat)(-1) for these temperatures (30, 40, 50, and 60 degrees C), respectively. Also the activation energy was calculated as 38.6 kJ mol(-1). Subsequently, the CV (cyclic voltammetry) and charge-discharge curves of the prototypes produced were substantially similar to the supercapacitor curves in the literature. Gravimetric capacitance was found to be 155F/g at a current density of 2 A/g.
dc.description.sponsorshipUnit of Scientific Research Project Coordination (BAP) at Erciyes University, Kayseri, Turkey [FDK-2020-10493]
dc.description.sponsorshipThe authors would like to acknowledge The Unit of Scientific Research Project Coordination (BAP) at Erciyes University, Kayseri, Turkey for the financial support under the University Project: FDK-2020-10493- (Doctoral thesis project) .
dc.identifier.doi10.1016/j.fuel.2021.121578
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153
dc.identifier.scopus2-s2.0-85111670731
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.fuel.2021.121578
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6503
dc.identifier.volume305
dc.identifier.wosWOS:000701901800004
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofFuel
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectTea factory waste
dc.subjectCatalyst
dc.subjectSupercapacitor
dc.subjectSodium borohydride
dc.subjectAcetic acid
dc.titleA Novel Tea factory waste metal-free catalyst as promising supercapacitor electrode for hydrogen production and energy storage: A dual functional material
dc.typeArticle

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