Elucidating the capacitive behavior of Gd-doped BNT-BKT-BT electrodes in All-in-One supercapacitor devices

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dc.contributor.authorBuldu-Akturk, Merve
dc.contributor.authorGozuacik, Namik Kemal
dc.contributor.authorAleinawi, Mohamad Hasan
dc.contributor.authorRostas, Arpad Mihai
dc.contributor.authorAlkoy, Sedat
dc.contributor.authorMensur, Ebru
dc.contributor.authorErdem, Emre
dc.date.accessioned2025-10-29T11:16:28Z
dc.date.issued2023
dc.departmentFakülteler, Temel Bilimler Fakültesi, Matematik Bölümü
dc.departmentFakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Mühendisliği Bölümü
dc.description.abstractBi0.5Na0.5TiO3-Bi0.5K0.5TiO3-BaTiO3 (BNT-BKT-BT) ceramics having various amounts of Gd-ions were synthesized via the solid-state reaction method. The electrochemical performance analysis of the Gd-doped BNT-BKT-BT ceramics has shown that the doping amount considerably impacts the BNT-BKT-BT electrode's electrochemical performance. The analysis of the defect centers was carried out using EPR spectroscopy. The samples showed paramagnetic defects in the EPR analysis. The 0.001 mol% Gd-doped BNT-BKT-BT showed a maximum signal intensity with partly resolved hyperfine lines, reaching the highest specific capacitance value of 612 Fg(-1). The EPR results were compared with the prototype BaTiO3 perovskite ceramic and concluded that the BNT-BKT-BT system has an extremely large strain, which hinders determining the spin-Hamiltonian parameters such as crystal field and hyperfine due to inhomogeneous line broadenings.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [118C243]
dc.description.sponsorshipTUBITAK
dc.description.sponsorshipMCID [27N, PN 23 24 01 03]
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK, Grant No: 118C243) in the frame of 2232-International Fellowship for Outstanding Researchers. E.E., M.H.A., and M.B.-A. gratefully acknowledge the financial support from the TUBITAK. This work was also supported through the Core Program within the National Research Development and Innovation Plan 2022-2027, carried out with the support of MCID, project no. 27N / 03.01.2023, component project code PN 23 24 01 03. A.M.R. gratefully acknowledges the financial support of MCID.
dc.identifier.doi10.1088/1402-4896/acf73e
dc.identifier.issn0031-8949
dc.identifier.issn1402-4896
dc.identifier.issue10
dc.identifier.orcid0000-0001-8190-9512
dc.identifier.scopus2-s2.0-85173163633
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1088/1402-4896/acf73e
dc.identifier.urihttps://hdl.handle.net/20.500.14854/7612
dc.identifier.volume98
dc.identifier.wosWOS:001090433700001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofPhysica Scripta
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20251020
dc.subjectBNT-BKT-BT ceramics
dc.subjectsupercapacitors
dc.subjectEPR spectroscopy
dc.subjectgadolinium
dc.titleElucidating the capacitive behavior of Gd-doped BNT-BKT-BT electrodes in All-in-One supercapacitor devices
dc.typeArticle

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