PEDOT:PSS Enhanced Electrochemical Capacitive Performance of Graphene-Templated delta-MnO2

dc.authorid0000-0002-6340-3064en_US
dc.contributor.authorSinan, Neriman
dc.contributor.authorÜnür Yılmaz, Ece
dc.date.accessioned2021-03-20T20:12:19Z
dc.date.available2021-03-20T20:12:19Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Kimya Bölümüen_US
dc.description.abstractBirnessite-type manganese dioxide (delta-MnO2) with hierarchical micro-/mesoporosity was synthesized via sacrificial graphene template approach under mild hydrothermal conditions for the first time. Graphene template was obtained by a surfactant (cetyltrimethylammonium bromide, CTAB) assisted liquid phase exfoliation (LPE) in water. A thin PEDOT:PSS (poly (3,4-ethylene dioxythiophene): poly (styrene sulfonate)) layer was applied to improve electrical conductivity and rate capability of MnO2. The MnO2 (535 F g(-1) at 1 A g(-1) and 45 F g(-1) at 10 A g(-1) ) and MnO2/PEDOT:PSS nanocomposite (550 F at 1 A g(-1) and 141 F g(-1) at 10 A g(-1) ) delivered electrochemical performances superior to their previously reported counterparts. An asymmetric supercapacitor, composed of MnO2 /PEDOT:PSS (positive) and Fe3O4/Carbon (negative) electrodes, provided a maximum specific energy of 18 Wh kg(-1) and a maximum specific power of 4.5 kW kg(-1) (Delta V= 2 V, 1M Na2SO4) with 85% capacitance retention after 1000 cycles. The graphene-templated MnO2 /PEDOT:PSS nanocomposite obtained by a simple and green approach promises for future energy storage applications with its remarkable capacitance, rate performance and cycling stability.en_US
dc.description.sponsorshipResearch Fund of the Bursa Technical University [2016-01-023]en_US
dc.description.sponsorshipThis work was financially supported by Research Fund of the Bursa Technical University (Project Number: 2016-01-023) and part of the material characterizations were conducted at the Middle East Technical University Central Laboratory and the Bursa Technical University Central Research Laboratory.en_US
dc.identifier.doi10.33961/jecst.2019.03475en_US
dc.identifier.endpage59en_US
dc.identifier.issn2093-8551
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage50en_US
dc.identifier.urihttp://doi.org/10.33961/jecst.2019.03475
dc.identifier.urihttps://hdl.handle.net/20.500.12885/480
dc.identifier.volume11en_US
dc.identifier.wosWOS:000517829000005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSinan, Neriman
dc.language.isoenen_US
dc.publisherKorean Electrochemistry Socen_US
dc.relation.ispartofJournal Of Electrochemical Science And Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectGrapheneen_US
dc.subjectLiquid Exfoliationen_US
dc.subjectMnO2en_US
dc.subjectPEDOT:PSSen_US
dc.subjectSupercapacitoren_US
dc.titlePEDOT:PSS Enhanced Electrochemical Capacitive Performance of Graphene-Templated delta-MnO2en_US
dc.typeArticleen_US

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