Massive anionic fluorine substitution two-dimensional δ-MnO2 nanosheets for high-performance aqueous zinc-ion battery

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dc.contributor.authorWang, Den_AU
dc.contributor.authorLiu, ZMen_AU
dc.contributor.authorGao, XWen_AU
dc.contributor.authorGu, QFen_AU
dc.contributor.authorZhao, LKen_AU
dc.contributor.authorLuo, WBen_AU
dc.date.accessioned2025-07-18T04:46:42Zen_AU
dc.date.available2025-07-18T04:46:42Zen_AU
dc.date.issued2023-11-30en_AU
dc.date.statistics2025-07-18en_AU
dc.description.abstractAs one of the most promising materials for rechargeable aqueous zinc ion batteries (AZIBs), manganese oxide (δ-MnO2) need overcome the fatal limitations of structural instability and manganese dissolution for future practical application. Crystal high-orientated two-dimensional δ-MnO2 nanosheets with massive anionic fluorine were synthesized by a lava method with quenching treatment. When employed as a cathode material for zinc ion batteries, it exhibits a long cycling lifespan and high multiplicity performance. The fluorine atoms substitution can not only stabilize the manganese‑oxygen octahedron [MnO6] structure by introducing fluorine‑manganese chemical bonding, but also regulate the Mn3+/Mn4+ ratio by increasing the Mn3+ concentration content. Meanwhile, the obtained high-orientated 2D nanosheets structure can accelerate the ions kinetic behaviors for high rate electrochemical performance by shortening the ion translation and increasing the electronic conductivity. The optimized δ-MnO2 nanosheets exhibit a superior electrochemical performance of 288 mAh g−1 at current densities of 100 mA g−1. An excellent cycling lifespan up to 96 % capacity retention is indicated as well after 200 cycles at a current density of 200 mA g−1. This element doping strategy by molten salt quenching method has the benefits of simple synthesis steps and high yield with high economic efficiency. © 2023 Elsevier Ltd.en_AU
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (Grant No. 52272194), LiaoNing Revitalization Talents Program (Grant No. XLYC2007155). This manuscript was written through the contributions of all the authors. All authors have given approval to the final version of the manuscript.en_AU
dc.identifier.articlenumber108740en_AU
dc.identifier.citationWang, D., Liu, Z., Gao, X.-W., Gu, Q., Zhao, L., & Luo, W.-B. (2023). Massive anionic fluorine substitution two-dimensional δ-MnO2 nanosheets for high-performance aqueous zinc-ion battery. Journal of Energy Storage, 72, 108740. doi:10.1016/j.est.2023.108740en_AU
dc.identifier.issn2352-152Xen_AU
dc.identifier.journaltitleJournal of Energy Storageen_AU
dc.identifier.urihttps://doi.org/10.1016/j.est.2023.108740en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16310en_AU
dc.identifier.volume72en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectZinc ionsen_AU
dc.subjectZinc-air batteriesen_AU
dc.subjectManganeseen_AU
dc.subjectDissolutionen_AU
dc.subjectQuenchingen_AU
dc.subjectCrystal dopingen_AU
dc.subjectEnergy storageen_AU
dc.subjectIonic conductivityen_AU
dc.subjectEnergy densityen_AU
dc.subjectElectrolytesen_AU
dc.titleMassive anionic fluorine substitution two-dimensional δ-MnO2 nanosheets for high-performance aqueous zinc-ion batteryen_AU
dc.typeJournal Articleen_AU
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