Synergistic Impact of Vanadium Doping on the Structural and Electrochemical Performance of O3-NaMnO2 as Sodium-Ion Battery Cathode Material

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dc.contributor.authorBenzaid, Abdelali
dc.contributor.authorBounar, Nedjemeddine
dc.contributor.authorWhba, Rawdah
dc.contributor.authorSaoudel, Abdelmalek
dc.contributor.authorGuler, Mihrihan
dc.contributor.authorAltin, Serdar
dc.date.accessioned2026-04-04T13:37:36Z
dc.date.available2026-04-04T13:37:36Z
dc.date.issued2025
dc.departmentİnönü Üniversitesi
dc.description.abstractVanadium-doped sodium manganese oxides (O3-NaMnO2) are promising cathode materials for sodium-ion batteries (SIBs) due to their structural stability and enhanced electrochemical performance. This study systematically investigates the effects of V doping (x = 0.03-0.50) on the structural, morphological, and electrochemical properties of NaMnO2 synthesized via a solid-state method. X-ray diffraction (XRD) confirms that low V doping (x <= 0.10) stabilizes the layered O3 structure and suppresses Jahn-Teller (JT) distortions, while higher doping induces a secondary Na0.5VO2 phase. Scanning and transmission electron microscopy (SEM/TEM) reveal that moderate V substitution (x = 0.10) improves particle uniformity and Na-ion transport. Electrochemical measurements show that both x = 0.03 and x = 0.10 exhibit good performance; however, x = 0.03 provides the best overall balance of high capacity, rate capability, and cycling stability, delivering initial charge and discharge capacities of 211 and 124 mAh/g, respectively. Redox and impedance analyses indicate reduced charge-transfer resistance and enhanced Na-ion kinetics at this composition. In contrast, excessive V doping (x >= 0.30) causes structural degradation and capacity fading. These results highlight the importance of controlled V doping in optimizing NaMnO2-based cathodes for high-performance SIBs.
dc.description.sponsorshipInonu University [FDP-2024-3694]
dc.description.sponsorshipThe authors express their gratitude to the University of Jijel, Algeria, for providing laboratory facilities and services for this project. Special appreciation is extended to the Inonu University Research Council for supporting the project under grant number FDP-2024-3694. The authors also acknowledge the assistance provided by the universities' technical staff, whose efforts significantly contributed to the successful completion of this project.
dc.identifier.doi10.1002/slct.202504366
dc.identifier.issn2365-6549
dc.identifier.issue46
dc.identifier.orcid0000-0002-0624-6074
dc.identifier.orcid0000-0002-4590-907X
dc.identifier.orcid0000-0002-4786-897X
dc.identifier.scopus2-s2.0-105023977398
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://doi.org/10.1002/slct.202504366
dc.identifier.urihttps://hdl.handle.net/11616/109935
dc.identifier.volume10
dc.identifier.wosWOS:001630384100001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofChemistryselect
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250329
dc.subjectelectrochemical response
dc.subjectsodium ion batteries
dc.subjectsodium manganese oxide
dc.subjectstructural
dc.subjectvanadium-doped
dc.titleSynergistic Impact of Vanadium Doping on the Structural and Electrochemical Performance of O3-NaMnO2 as Sodium-Ion Battery Cathode Material
dc.typeArticle

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