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The rational design of bifunctional MOF-ZnFe2O4 hollow sphere-based nanocomposites for ultra-efficient electrochemical oxygen evolution reaction and high-performance symmetric supercapacitor electrodes

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dc.citedby8
dc.contributor.authorLee D.-E.en_US
dc.contributor.authorDanish M.en_US
dc.contributor.authorHusain A.en_US
dc.contributor.authorJo W.-K.en_US
dc.contributor.authorid56605563300en_US
dc.contributor.authorid57216220743en_US
dc.contributor.authorid57215031715en_US
dc.contributor.authorid7103322277en_US
dc.date.accessioned2025-03-03T07:41:49Z
dc.date.available2025-03-03T07:41:49Z
dc.date.issued2024
dc.description.abstractSupercapacitors have emerged as versatile energy storage devices, valued for their rapid charge-discharge capabilities and long cycle life. Concurrently, efficient electrocatalysts are essential for promoting the oxygen evolution reaction (OER) in sustainable energy applications. Inevitably, this study explores the integration of a Cobalt-Nickel (Co/Ni) based metal-organic framework [CoNi((?3-tp)2(?2-py)2 or CNTP] with ZnFe2O4 hollow spheres (ZHS) to create innovative CNTP/ZHS nanocomposites tailored for supercapacitor and electrocatalytic OER applications. Different weight percentages of CNTP/ZHS nanocomposites were synthesized through a facile and scalable method, and their electrochemical performance was rigorously assessed. Electrochemical characterization revealed that a 40 wt percentage CNTP/ZHS (40-CNTP/ZHS) electrode demonstrated a very high specific capacitance of 1519.2 Fg?1 at 1 Ag?1 and retained 92.6 % of its specific capacitance after 10000 cycles. Moreover, it delivered remarkably high specific capacitance (447.2 Fg?1) and energy density (62.1 WhKg?1) along with outstanding cyclic stability (97.5 % after 5000 galvanostatic charge-discharge cycles). It also exhibited excellent OER activity, with a very low overpotential (207 mV to attain a current density of 10 mAcm?2), a small Tafel slope (66.5 mVdec?1), and high stability over 2000 cyclic voltammetry cycles. These characteristics underscore the significant potential of renewable energy technologies, particularly for water electrolysis and sustainable energy conversion.1 ? 2024 Elsevier B.V.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo175048
dc.identifier.doi10.1016/j.jallcom.2024.175048
dc.identifier.scopus2-s2.0-85195303118
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85195303118&doi=10.1016%2fj.jallcom.2024.175048&partnerID=40&md5=c6a31fbf28ed855fb528c005a68dd3a3
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36291
dc.identifier.volume1000
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleJournal of Alloys and Compounds
dc.subjectCapacitance
dc.subjectCyclic voltammetry
dc.subjectElectric discharges
dc.subjectElectrocatalysts
dc.subjectElectrochemical electrodes
dc.subjectElectrolysis
dc.subjectElectrolytic reduction
dc.subjectEnergy efficiency
dc.subjectNanocomposites
dc.subjectOrganometallics
dc.subjectOxygen
dc.subjectRenewable energy
dc.subjectScalability
dc.subjectSpheres
dc.subjectSupercapacitor
dc.subjectZinc compounds
dc.subjectBi-functional
dc.subjectBinary nanocomposite
dc.subjectElectrochemical oxygen
dc.subjectHigh specific capacitances
dc.subjectHollow sphere
dc.subjectRational design
dc.subjectSustainable energy
dc.subjectThermal impregnations
dc.subjectUltra-efficient
dc.subjectWater electrolysis
dc.subjectEnergy storage
dc.titleThe rational design of bifunctional MOF-ZnFe2O4 hollow sphere-based nanocomposites for ultra-efficient electrochemical oxygen evolution reaction and high-performance symmetric supercapacitor electrodesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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