Irradiated rGO electrode-based high-performance supercapacitors: Boosting effect of GO/rGO mixed nanosheets on electrochemical performance

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dc.authoridKARAMAN, CEREN/0000-0001-9148-7253
dc.authoridkorkmaz, satiye/0000-0002-7592-3366
dc.contributor.authorKaraman, Onur
dc.contributor.authorKariper, I. Afsin
dc.contributor.authorKorkmaz, Satiye
dc.contributor.authorKarimi-Maleh, Hassan
dc.contributor.authorUsta, Metin
dc.contributor.authorKaraman, Ceren
dc.date.accessioned2024-09-29T15:57:13Z
dc.date.available2024-09-29T15:57:13Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractSupercapacitors are seemed to be one of the most promising choices as an energy storage system. However, there is still a gap in enhancing its energy density values and cyclic stabilities throughout a facile approach. Herein, it was aimed to propose a facile and effective way to fabricate high-energy supercapacitor electrode material based on reduced graphene oxide (rGO) nanostructure. Bearing this in mind, the bulk rGO powder was irradiated by various beam sources including Co-60, Am-241, Na-22, and Sr-90, and the resultant irradiated rGO samples were utilized as the electrode active material to fabricate symmetrical supercapacitor cells. The irradiated rGO samples were characterized both physicochemically and electrochemically. The physicochemical characterizations revealed that as a consequence of the irradiation, both GO and rGO nanosheets were formed in the resultant powder and the d-spacing of the graphene nanosheets were expanded. The highest electrochemical performance metrics were acquired for Sr-90 irradiated rGO electrode-based supercapacitor cell with the specific capacitance value of 585.44F.g ? 1 at 0.2 A.g ? 1, and outstanding capacitance retention performance of 97.14% for the 5000th CV cycles at 200 mV.s ? 1. Moreover, the energy density and power density values were comparable to other commercial energy storage systems such as lead-acid and nickel-metal hybrid batteries. Hence, it can be speculated that these pioneering breakthroughs could pave the way for cutting-edge high-energy supercapacitors based on rGO-derivatives with superior electrochemical performance metrics, as well as engineering of highperformance rGO-based materials to be employed in various energy applications.en_US
dc.identifier.doi10.1016/j.fuel.2022.125298
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153
dc.identifier.scopus2-s2.0-85134484818en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.fuel.2022.125298
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4687
dc.identifier.volume328en_US
dc.identifier.wosWOS:000846766100001en_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.subjectReduced graphene oxideen_US
dc.subjectRadioactive irradiationen_US
dc.subjectSupercapacitoren_US
dc.subjectHigh-energyen_US
dc.subjectSurface modificationen_US
dc.titleIrradiated rGO electrode-based high-performance supercapacitors: Boosting effect of GO/rGO mixed nanosheets on electrochemical performanceen_US
dc.typeArticleen_US

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