Preparation and capacitance properties of graphene quantum Dot/NiFe−layered double‐hydroxide nanocomposite

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buir.contributor.authorKaradaş, Ferdi
buir.contributor.orcidKaradaş, Ferdi|0000-0001-7171-9889
dc.citation.epage266en_US
dc.citation.issueNumber3en_US
dc.citation.spage258en_US
dc.citation.volumeNumber2021en_US
dc.contributor.authorSamuei, S.
dc.contributor.authorRezvani, Z.
dc.contributor.authorShomali, A.
dc.contributor.authorÜlker, E.
dc.contributor.authorKaradaş, Ferdi
dc.date.accessioned2021-03-01T13:24:50Z
dc.date.available2021-03-01T13:24:50Z
dc.date.issued2021-01
dc.departmentDepartment of Chemistryen_US
dc.description.abstractA new composite from graphene quantum dots (GQDs) and NiFe layered double hydroxide was successfully prepared by the coprecipitation method under optimal conditions. The nanoparticles of the composite were analyzed by X‐ray diffraction (PXRD), Fourier transform infrared spectroscopy (FT‐IR), scanning electron microscopy (SEM), and thermal gravimetric analysis (TGA) to obtain the structure, composition and morphology information. Also, the electrochemical properties were investigated by cyclic voltammetry, galvanostatic charge/discharge measurements, and electrochemical impedance spectroscopy. The nanocomposite displays a specific capacitance of 712.7 F g−1 and excellent cycle life after 2500 cycles by applying 10 A g−1 of the current density in 1 M KOH electrolyte, which confirms that the nanocomposite has superb capacitance retention (∼94.8 %) and can be used as a capable supercapacitor. Furthermore, this study provides a desirable procedure for the preparation of novel nanocomposites based on graphene quantum dots, which can be used in energy storage/conversion devices.en_US
dc.description.provenanceSubmitted by Evrim Ergin (eergin@bilkent.edu.tr) on 2021-03-01T13:24:50Z No. of bitstreams: 1 Preparation_and_capacitance_properties_of_graphene_quantum_Dot-NiFe−layered_double‐hydroxide_nanocomposite.pdf: 1217187 bytes, checksum: a6255abc67888700e6abb30f6db73bf3 (MD5)en
dc.description.provenanceMade available in DSpace on 2021-03-01T13:24:50Z (GMT). No. of bitstreams: 1 Preparation_and_capacitance_properties_of_graphene_quantum_Dot-NiFe−layered_double‐hydroxide_nanocomposite.pdf: 1217187 bytes, checksum: a6255abc67888700e6abb30f6db73bf3 (MD5) Previous issue date: 2020-11en
dc.embargo.release2022-01-31
dc.identifier.doi10.1002/ejic.202000838en_US
dc.identifier.issn1434-1948
dc.identifier.urihttp://hdl.handle.net/11693/75687
dc.language.isoEnglishen_US
dc.publisherWiley-VCH Verlagen_US
dc.relation.isversionofhttps://doi.org/10.1002/ejic.202000838en_US
dc.source.titleEuropean Journal of Inorganic Chemistryen_US
dc.subjectGraphene Quantum dotsen_US
dc.subjectLayered double hydroxidesen_US
dc.subjectNanocompositesen_US
dc.subjectSupercapacitorsen_US
dc.titlePreparation and capacitance properties of graphene quantum Dot/NiFe−layered double‐hydroxide nanocompositeen_US
dc.typeArticleen_US

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