Diatom-Derived SiO2/N-Doped C Nanocomposite for Electrochemical Capacitors

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dc.authorid0000-0001-5807-633Xen_US
dc.contributor.authorÜnür Yılmaz, Ece
dc.contributor.authorYılmaz, Mete
dc.date.accessioned2021-03-20T20:12:20Z
dc.date.available2021-03-20T20:12:20Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Biyomühendislik Bölümüen_US
dc.description.abstractMicroalgae present a massive and untapped natural source of biomass for various applications. The fresh-water microalgae biomass was collected from Lake Uluabat in Turkey. Diatoms, which contain large amounts of SiO(2)in the form of cell walls, constituted 60%wt. of the biomass. SiO2/N-doped carbon nanocomposite (SiO2/NC) was obtained by an efficient MgO templating of the biomass conducted through hydrothermal carbonization and successive calcination. Despite its moderate specific surface area (250 m(2)g(-1)) and low C content (18%wt.), theSiO(2)/NCelectrode achieved a high specific capacitance (300 F g(-1)at 0.3 A g(-1), in 1 M H2SO4) due to pseudocapacitive contribution from heteroatoms (2%wt. N and 19% wt. O) and electric double layer contribution from interfaces expanded by SiO2. Interconnected network of micro- and meso- pores reinforced by SiO(2)provided enhanced rate capability and cycling stability (100% capacitance retention after 1500 cycles at 2 A g(-1)).en_US
dc.description.sponsorshipTUBITAK (The Scientific and Technological Research Council of Turkey-Project)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [114Y641]en_US
dc.description.sponsorshipAlgae samples used in this work were collected as part of the project that was funded by TUBITAK (The Scientific and Technological Research Council of Turkey-Project No: 114Y641).en_US
dc.identifier.doi10.1149/2162-8777/aba4efen_US
dc.identifier.issn2162-8769
dc.identifier.issn2162-8777
dc.identifier.issue6en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttp://doi.org/10.1149/2162-8777/aba4ef
dc.identifier.urihttps://hdl.handle.net/20.500.12885/493
dc.identifier.volume9en_US
dc.identifier.wosWOS:000554504600001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÜnür Yılmaz, Ece
dc.language.isoenen_US
dc.publisherElectrochemical Soc Incen_US
dc.relation.ispartofEcs Journal Of Solid State Science And Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbiomassen_US
dc.subjectdiatomen_US
dc.subjectbiosilicaen_US
dc.subjectnanocompositeen_US
dc.subjectSupercapacitorsen_US
dc.titleDiatom-Derived SiO2/N-Doped C Nanocomposite for Electrochemical Capacitorsen_US
dc.typeArticleen_US

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