Carbon Pseudocubes from Iron Oxide Templates for Capacitive Energy Storage

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dc.authorid0000-0002-6340-3064en_US
dc.contributor.authorSinan, Neriman
dc.contributor.authorÜnür Yılmaz, Ece
dc.date.accessioned2021-03-20T20:09:28Z
dc.date.available2021-03-20T20:09:28Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Kimya Bölümüen_US
dc.description.abstractA surface-protected etching approach was used to synthesize monodisperse partially hollow carbon nanostructures with pseudocubic shapes. Monodisperse chemical templates (alpha-Fe2O3, MF) were synthesized by the gel-sol method and coated with a polyvinylpyrrolidone (PVP) protective layer. Pyrrole monomers were dispersed around the PVP-protected alpha-Fe2O3 templates. Upon acidic etching, Fe3+ ions were released to initiate in situpolymerization of pyrrole to form Fe2O3@PPy (MFP) core-shell intermediates. The MFP particles were calcined to obtain partially hollow 3D pseudocubic carbon nanoparticles (PCC). The PCC delivered a high specific capacitance (395 F g(-1) at 0.2 A g(-1)) and enhanced cycling stability (5000 cycles at 4 A g(-1)). The superior electrochemical properties of the PCC is attributed to its cubic and partially hollow structure, which increases electric double layer capacitance by increasing charge storage surface, facilitates effective ion diffusion by reducing interparticle distances, and buffers volumetric changes associated with ion insertion through void space/pores. The simple and highly reproducible method presented in this work can be extended to produce various hollow or yolk-shell nanostructures as high-performance supercapacitor electrode materials. (C) 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.en_US
dc.identifier.doi10.1149/2162-8777/ab8c1ben_US
dc.identifier.issn2162-8769
dc.identifier.issn2162-8777
dc.identifier.issue4en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttp://doi.org/10.1149/2162-8777/ab8c1b
dc.identifier.urihttps://hdl.handle.net/20.500.12885/430
dc.identifier.volume9en_US
dc.identifier.wosWOS:000531468000001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSinan, Neriman
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.subjectFe2O3en_US
dc.subjectpolypyrroleen_US
dc.subjectpseudocubic carbonen_US
dc.subjectself-templateen_US
dc.subjectSupercapacitorsen_US
dc.titleCarbon Pseudocubes from Iron Oxide Templates for Capacitive Energy Storageen_US
dc.typeArticleen_US

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