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Ti2NbC2Tx MXene Nanosheets as an Ordered Double Transition Metal Electrode for High-Performance Supercapacitors

ArticleAçık Erişim

Özet

The increasing demand for advanced materials in energy storage underscores the importance of chemical diversity in nanomaterials. Ordered double transition metal (DTM) MXenes have emerged as promising atomically layered 2D materials. This study investigates the flexible Ti2NbC2Tx MXene, synthesized from the ordered Ti2NbAlC2 MAX phase, as a supercapacitor electrode material. Electrochemical analyses revealed specific capacitances of 322 and 642 F g-1 at a current density of 0.5 A g-1 in Na2SO4 (Na) and H2SO4 (H) electrolytes, respectively. Ti2NbC2Tx MXene exhibited exceptional cycling stability, retaining 95% capacitance in Na2SO4 and 100% in H2SO4 after 10,000 charge/discharge cycles. Furthermore, an asymmetric supercapacitor (ASC) was fabricated using Ti2NbC2Tx MXene as the positive electrode and overcapacitive activated carbon as the negative electrode with PVA-Na and PVA-H gel electrolytes. The ASC achieved energy densities of 31.1 and 34.0 W h kg-1 for PVA-Na and PVA-H electrolytes, respectively. These results highlight the potential of Ti2NbC2Tx MXene, with its unique ordered structure and double transition metal composition, for foundational research and applications in advanced energy storage technologies. © 2025 American Chemical Society.

Anahtar Kelimeler

energy storagegel electrolytesordered double transitionsTi<sub>2</sub>NbAlC<sub>2</sub> MAX phaseTi<sub>2</sub>NbC<sub>2</sub>T<sub>x</sub> MXene filmAluminum compoundsCapacitor storageCoated wire electrodesTitanium dioxideAdvanced materialsAsymmetric supercapacitorEnergyGel electrolyteMAX-phaseMetal electrodesOrdered double transitionPerformanceTi2NbAlC2 MAX phaseTi2NbC2Tx mxene filmElectrolytic analysis
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/10775Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1021/acsanm.5c00663Yayıncı resmi DOI adresi
Tam Kayıt
AlanDeğerDil
dc.contributor.authorTuzluca Yesilbag, Fatma Nur
dc.contributor.authorYesilbag, Yasar Ozkan
dc.contributor.authorHuseyin, Ahmad
dc.contributor.authorSalih, Ahmed Jalal Salih
dc.contributor.authorErtugrul, Mehmet
dc.date.accessioned2026-10-18T20:25:55.028967419Z
dc.date.available2026-10-18T20:25:55.028967419Z
dc.date.issued2025
dc.description.abstractThe increasing demand for advanced materials in energy storage underscores the importance of chemical diversity in nanomaterials. Ordered double transition metal (DTM) MXenes have emerged as promising atomically layered 2D materials. This study investigates the flexible Ti2NbC2Tx MXene, synthesized from the ordered Ti2NbAlC2 MAX phase, as a supercapacitor electrode material. Electrochemical analyses revealed specific capacitances of 322 and 642 F g-1 at a current density of 0.5 A g-1 in Na2SO4 (Na) and H2SO4 (H) electrolytes, respectively. Ti2NbC2Tx MXene exhibited exceptional cycling stability, retaining 95% capacitance in Na2SO4 and 100% in H2SO4 after 10,000 charge/discharge cycles. Furthermore, an asymmetric supercapacitor (ASC) was fabricated using Ti2NbC2Tx MXene as the positive electrode and overcapacitive activated carbon as the negative electrode with PVA-Na and PVA-H gel electrolytes. The ASC achieved energy densities of 31.1 and 34.0 W h kg-1 for PVA-Na and PVA-H electrolytes, respectively. These results highlight the potential of Ti2NbC2Tx MXene, with its unique ordered structure and double transition metal composition, for foundational research and applications in advanced energy storage technologies. © 2025 American Chemical Society.
dc.description.sponsorshipThis study was funded by TUBITAK (Project Number 120F312). The authors would like to thank Erzincan Binali Y\u0131ld\u0131r\u0131m University, Faculty of Science Application and Research Center (EUTAM), Atatu\u0308rk University Eastern Anatolia High Technology Application and Research Center (DAYTAM) and National Nanotechnology Research Center (UNAM) for their support in conducting the analysis.
dc.identifier.doi10.1021/acsanm.5c00663
dc.identifier.eissn2574-0970
dc.identifier.endpage9226
dc.identifier.issn2574-0970
dc.identifier.issue18
dc.identifier.scopus2-s2.0-105003691684
dc.identifier.startpage9211
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/10775
dc.identifier.volume8
dc.identifier.wosWOS:001477495300001
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.ispartofACS Applied Nano Materials
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectenergy storage
dc.subjectgel electrolytes
dc.subjectordered double transitions
dc.subjectTi<sub>2</sub>NbAlC<sub>2</sub> MAX phase
dc.subjectTi<sub>2</sub>NbC<sub>2</sub>T<sub>x</sub> MXene film
dc.subjectAluminum compounds
dc.subjectCapacitor storage
dc.subjectCoated wire electrodes
dc.subjectTitanium dioxide
dc.subjectAdvanced materials
dc.subjectAsymmetric supercapacitor
dc.subjectEnergy
dc.subjectGel electrolyte
dc.subjectMAX-phase
dc.subjectMetal electrodes
dc.subjectOrdered double transition
dc.subjectPerformance
dc.subjectTi2NbAlC2 MAX phase
dc.subjectTi2NbC2Tx mxene film
dc.subjectElectrolytic analysis
dc.titleTi2NbC2Tx MXene Nanosheets as an Ordered Double Transition Metal Electrode for High-Performance Supercapacitors
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus6
rdl.citation.wos6
rdl.source.indexSCOPUS
rdl.source.indexWOS
rdl.wos.indexScience Citation Index Expanded (SCI-EXPANDED)