Synergistic effect of biomass-derived carbon and conducting polymer coatings on the supercapacitive energy storage performance of TiO2

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dc.authorid0000-0001-5807-633Xen_US
dc.contributor.authorTorbali, M. Ebubekir
dc.contributor.authorÜnür Yılmaz, Ece
dc.date.accessioned2021-03-20T20:09:21Z
dc.date.available2021-03-20T20:09:21Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Kimya Bölümüen_US
dc.description.abstractThe application of anatase titanium dioxide (TiO2), which is an abundant and cost effective resource, in supercapacitors has been restricted due to its poor electronic conductivity and limited mechanical stability. A biomass-derived carbon was coated on anatase TiO2 nanoparticles via practical and green hydrothermal carbonization in order to overcome these limitations. Hierarchically porous carbon provided a capacitive double layer for charge storage and the TiO2/C nanocomposite exhibited a specific capacitance of 61 F x g(-1) (0.25 A x g(-1), 0 to 1 V vs. Ag/AgCl, 1 M H2SO4 aqueous electrolyte). The TiO2/C/PEDOTTSS nanocomposite with enhanced specific capacitance and rate capability (189 F x g(-1) at 0.25 A x g(-1), 161 F x g(-1) at 0.5 A x g(-1), 123 F x g(-1) at 1 A x g(-1), 91 F x g(-1) at 2 A x g(-1)) was obtained by the application of an electrochemically active PEDOT:PSS layer. The prominent electrochemical and mechanical stability of the ternary nanocomposite was demonstrated by its ability to retain 98 % of its initial capacitance after 1500 cycles of charge-discharge at a high current rate (3 A x g(-1)). The synergistic use of sustainable organic and inorganic components with environmentally friendly and practical methods yields extremely promising electrochemical performances for supercapacitor applications. The TiO2/C/PEDOT:PSS nanocomposite presented in this work delivered an electrochemical performance comparable to its published counterparts which are obtained by more sophisticated or hazardous methods and with expensive components.en_US
dc.description.sponsorshipTUBITAK (Scientific and Technological Research Council of Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [112T570]en_US
dc.description.sponsorshipThis work was partly funded by TUBITAK (the Scientific and Technological Research Council of Turkey - Project No: 112T570). The authors would like to acknowledge the Middle East Technical University Central Laboratory for their support in the characterization of the materials.en_US
dc.identifier.doi10.3139/120.111545en_US
dc.identifier.endpage819en_US
dc.identifier.issn0025-5300
dc.identifier.issue8en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage814en_US
dc.identifier.urihttp://doi.org/10.3139/120.111545
dc.identifier.urihttps://hdl.handle.net/20.500.12885/384
dc.identifier.volume62en_US
dc.identifier.wosWOS:000568263400008en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorÜnür Yılmaz, Ece
dc.language.isoenen_US
dc.publisherCarl Hanser Verlagen_US
dc.relation.ispartofMaterials Testingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAnatase TiO2en_US
dc.subjectbiomassen_US
dc.subjectnanocompositeen_US
dc.subjecthydrothermal carbonizationen_US
dc.subjectsupercapacitorsen_US
dc.titleSynergistic effect of biomass-derived carbon and conducting polymer coatings on the supercapacitive energy storage performance of TiO2en_US
dc.typeArticleen_US

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