Charge transport kinetics in flower like alpha-MnO2 nano-sheet and alpha-MnO2 nanowire based supercapacitors

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dc.authorscopusid57191579552
dc.authorscopusid57221124443
dc.authorscopusid35321422400
dc.authorscopusid57218575475
dc.authorscopusid12242899200
dc.authorscopusid8379291000
dc.contributor.authorKiymaz, Deniz
dc.contributor.authorKiymaz, Aykut
dc.contributor.authorTekoglu, Serpil
dc.contributor.authorMayr, Felix
dc.contributor.authorDincalp, Haluk
dc.contributor.authorZafer, Ceylan
dc.date.accessioned2023-01-12T19:58:27Z
dc.date.available2023-01-12T19:58:27Z
dc.date.issued2022
dc.departmentN/A/Departmenten_US
dc.description.abstractIn a supercapacitor, determining the cells' internal dynamics and limiting factors on the efficiency is essential for device designs. In this context, electrochemical impedance spectroscopy is a powerful tool in investigating device kinetics. This study explained the performance improvement in nanostructured MnO2 electrodes from a diffusion perspective. Firstly, we reported morphological features of flower-like nanosheet MnO2 and nanowire MnO2 with identical crystal structure (alpha-MnO2 phase) and capacitance-voltage properties. Then, the factors limiting the bias voltage-dependent capacitance efficiency were explained via electrochemical impedance spectroscopy by setting up a three-electrode system. Both resistance and capacitance vs. frequency plots provided important information on ion diffusion and charge transfer mechanisms.en_US
dc.description.sponsorshipPresidency of the Turkish Republic Department of Strategy and Budget; Scientific and Technical Research Council of Turkey (TUEBITAK); [2016K12-2841]; [1929b011800282]en_US
dc.description.sponsorshipThe authors acknowledge to Presidency of the Turkish Republic Department of Strategy and Budget for the financial support of Project Grant No: 2016K12-2841 and the Scientific and Technical Research Council of Turkey (TUEBITAK) for financial support of D. KIYMAZ in the frame of program 2218 with the Grant No.: 1929b011800282. Also, we would like to express our most profound appreciation to Prof. Dr. Niyazi Serdar SARICIFTCI and Prof. Dr. Markus SCHARBER for providing infrastructure and their knowledge.en_US
dc.identifier.doi10.1016/j.tsf.2022.139535
dc.identifier.issn0040-6090
dc.identifier.issn1879-2731
dc.identifier.issn0040-6090en_US
dc.identifier.issn1879-2731en_US
dc.identifier.scopus2-s2.0-85140139139en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.tsf.2022.139535
dc.identifier.urihttps://hdl.handle.net/11454/76910
dc.identifier.volume762en_US
dc.identifier.wosWOS:000885782500001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofThin Solid Filmsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectManganese dioxideen_US
dc.subjectHollanditeen_US
dc.subjectNanostructureen_US
dc.subjectNanosheeten_US
dc.subjectSupercapacitoren_US
dc.subjectElectrochemical impedance spectroscopyen_US
dc.subjectChemical solution depositionen_US
dc.subjectImpedanceen_US
dc.subjectMno2en_US
dc.subjectElectrolytesen_US
dc.subjectStateen_US
dc.subjectSpectroscopyen_US
dc.subjectPerformanceen_US
dc.subjectNanosheetsen_US
dc.subjectRedoxen_US
dc.titleCharge transport kinetics in flower like alpha-MnO2 nano-sheet and alpha-MnO2 nanowire based supercapacitorsen_US
dc.typeArticleen_US

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