Direct utilization of radioactive irradiated graphite as a high-energy supercapacitor a promising electrode material

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dc.authoridKaraman, Onur/0000-0003-3672-1865
dc.authoridKARAMAN, CEREN/0000-0001-9148-7253
dc.authoridkorkmaz, satiye/0000-0002-7592-3366
dc.contributor.authorKarimi-Maleh, Hassan
dc.contributor.authorKariper, I. Afsin
dc.contributor.authorKaraman, Ceren
dc.contributor.authorKorkmaz, Satiye
dc.contributor.authorKaraman, Onur
dc.date.accessioned2024-09-29T15:57:13Z
dc.date.available2024-09-29T15:57:13Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractConsidering ever-increasing energy needs, resulting in the depletion of fossil fuels and, as a corollary, global warming, the adoption of green technologies and the development of sophisticated energy storage and conversion technologies are imperative. Although the supercapacitors have garnered a lot of attention as a highperformance energy storage solution, it is still crucial to engineer novel electrode materials via low-cost and facile, scalable methods while maintaining their enhanced power density and cycle stability. In this work, it was aimed to design and engineer graphite (GRs)-based electrode low-cost materials to be utilized as a highperformance supercapacitor. This study is of great importance in terms of it is one of the first works which offered a facile pathway to fabricate GRs-based electrode materials via the irradiation approach, as well as direct utilization of them in supercapacitor cells. In this regard, various graphite-based samples were prepared by irradiation with several point beam radiation sources, including Am-241, Sr-90, Co-60, and Na-22. The electrochemical active surface area and microcrystalline sizes of GRs were fine-tuned via the type of the radiation source. X-Ray Diffraction (XRD), Raman spectroscopy, and Scanning Electron Microscopy, Energy Dispersive X Ray (SEM-EDX) techniques were employed to assess the physicochemical features of the as-obtained GRs. The electrochemical behaviors of the samples were further tested in 3.0 M H2SO4 aqueous electrolyte via the coin-cell type supercapacitor cells based on GRs. The maximum specific capacitance was achieved for the GR-Sr90 sample, which was of the largest electrochemically active surface area (0.3087 cm(2)), as 483.20F.g(-1) at a current density of 0.2 A.g(-1), which was roughly 5 fold of the non-irradiated GR sample. At the end of the 5,000th CV cycle, the capacitance retention of GR-Sr90 was determined to be 97.40 %. The energy density and power density values of assembled supercapacitor cells based on GRs were found to be comparable to the commercial energy storage systems. All these striking results reveal that the suggested scalable fabrication method will shed an innovative light on the development and engineering of energy storage systems based on low-cost graphite-based electrode materials.en_US
dc.identifier.doi10.1016/j.fuel.2022.124843
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153
dc.identifier.scopus2-s2.0-85132720042en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.fuel.2022.124843
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4685
dc.identifier.volume325en_US
dc.identifier.wosWOS:000824746300006en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofFuelen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGraphiteen_US
dc.subjectRadioactive irradiationen_US
dc.subjectSupercapacitoren_US
dc.subjectHigh-energyen_US
dc.subjectSurface modificationen_US
dc.titleDirect utilization of radioactive irradiated graphite as a high-energy supercapacitor a promising electrode materialen_US
dc.typeArticleen_US

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