Tetraiodo nickel phthalocyanine electrocatalyst enables superior Na-Se battery performances by enhancing the utilization of Na2Se

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dc.authoridYUZER, ABDULCELIL/0000-0002-2287-4126
dc.authoridDemir-Cakan, Rezan/0000-0002-8667-6567
dc.contributor.authorErdol, Zeynep
dc.contributor.authorYuzer, Celil
dc.contributor.authorKilic, Nazmiye
dc.contributor.authorInce, Mine
dc.contributor.authorAta, Ali
dc.contributor.authorDemir-Cakan, Rezan
dc.date.accessioned2025-02-20T08:42:18Z
dc.date.available2025-02-20T08:42:18Z
dc.date.issued2023
dc.departmentTürk-Alman Üniversitesien_US
dc.description.abstractSodium: -Selenium (Na-Se) batteries are regarded as one of the most promising alternative energy storage de-vices compared to their room-temperature sodium-sulfur battery counterparts. Since Selenium cathodes operate well in carbonate-based electrolytes, the solubility issue of polyselenides is no longer an issue. However, the main obstacles of Na-Se batteries remain the precipitation and reoxidation of sodium selenide (Na2Se) owing to the high energy barrier of these reactions and passivation of the electrode during cycling. Herein, we propose a tetraiodo nickel phthalocyanine (NiPc) electrocatalyst to improve the electrochemical performance of Na-Se batteries. It is demonstrated that the presence of even a small amount of NiPc improves the electrocatalytic conversion of Na2Se by lowering the decomposition energy barrier of Na2Se. The improved cell performances are verified by the decrease in reaction polarization, Tafel slope values, and the measured internal resistance of Na-Se cells in addition to the density functional theory (DFT) calculations. Consequently, the Na-Se cell with the NiPc electrocatalyst exhibited outstanding rate capability (405 mAh & BULL;g- 1 after 250 cycles at 3375 mA g-1 and superior long-term cyclic stability (563 mAh & BULL;g- 1 after 250 cycles at 675 mA g-1), which are among the most promising rate performance characteristics demonstrated in the literature.
dc.identifier.doi10.1016/j.jpowsour.2023.233297
dc.identifier.issn0378-7753
dc.identifier.issn1873-2755
dc.identifier.scopus2-s2.0-85161633416
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2023.233297
dc.identifier.urihttps://hdl.handle.net/20.500.12846/1640
dc.identifier.volume579en_US
dc.identifier.wosWOS:001020626500001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Power Sources
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250220
dc.subjectElectrocatalysten_US
dc.subjectNickel phthalocyanineen_US
dc.subjectSodium selenideen_US
dc.subjectSodium -selenium batteriesen_US
dc.titleTetraiodo nickel phthalocyanine electrocatalyst enables superior Na-Se battery performances by enhancing the utilization of Na2Se
dc.typeArticle

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