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Fast and green synthesis of battery-type nickel-cobalt phosphate (NxCyP) binder-free electrode for supercapattery

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dc.citedby3
dc.contributor.authorGerard O.en_US
dc.contributor.authorRamesh S.en_US
dc.contributor.authorRamesh K.en_US
dc.contributor.authorNuman A.en_US
dc.contributor.authorKhalid M.en_US
dc.contributor.authorTiong S.K.en_US
dc.contributor.authorid57477300100en_US
dc.contributor.authorid41061958200en_US
dc.contributor.authorid57220754709en_US
dc.contributor.authorid57203018572en_US
dc.contributor.authorid36945624700en_US
dc.contributor.authorid15128307800en_US
dc.date.accessioned2025-03-03T07:42:00Z
dc.date.available2025-03-03T07:42:00Z
dc.date.issued2024
dc.description.abstractBinder-free electrodes are increasingly important in energy storage technologies owing to the direct growth of active material on conducting substrates without binders, providing a shorter conduction channel for rapid electron transport. Various methods have been employed to synthesize binder-free electrodes, but most approaches often prove time-consuming, and some require elevated synthesis temperatures. Herein, a rapid and eco-friendly microwave-hydrothermal method was introduced to fabricate the battery-type nickel?cobalt phosphate (NxCyP) binder-free electrodes for supercapattery. The use of microwave accelerates heating and reduces the activation energy of the reaction, resulting in shorter synthesis time and lower reaction temperature. The NxCyP electrodes were fabricated at different parameters, such as temperature (90?200 �C), time (5?20 min), and Ni:Co precursor ratios (4:0, 3:1, 2:2, 1:3, 0:4). The optimization study was carried out via Design Expert v13 software, and the optimized parameter was the temperature of 123.5 �C, duration of 10.5 min, and Ni:Co of 2:2, namely N2C2P binder-free electrode. The N2C2P electrode exhibited larger flake- and flower-like morphologies, providing more space for electrolyte ion diffusion and a larger surface area for faradaic reactions. Consequently, it demonstrated outstanding electrochemical performance by displaying a high specific capacity (1699.7C/g at 3 mV/s), superior capacity retention, and the lowest resistances than other NxCyP electrodes. As a result, the N2C2P//AC supercapattery was created by merging it with an activated carbon (AC) electrode, showing a superior energy density (213.0 Wh/kg) and high electrochemical stability with 92.9 % retention after 3000 cycles at 10 A/g. ? 2024 Elsevier B.V.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo154842
dc.identifier.doi10.1016/j.cej.2024.154842
dc.identifier.scopus2-s2.0-85201491329
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85201491329&doi=10.1016%2fj.cej.2024.154842&partnerID=40&md5=4fef900677f0a80dbe6d3716261faeb4
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36342
dc.identifier.volume497
dc.publisherElsevier B.V.en_US
dc.sourceScopus
dc.sourcetitleChemical Engineering Journal
dc.subjectActivation energy
dc.subjectBattery storage
dc.subjectBinders
dc.subjectGreen Synthesis
dc.subjectHydrothermal synthesis
dc.subjectRate constants
dc.subjectBattery-type
dc.subjectBinder free
dc.subjectBinder-free electrode
dc.subjectDirect growth
dc.subjectEnergy
dc.subjectEnergy storage technologies
dc.subjectGreen synthesis
dc.subjectMicrowave hydrothermal
dc.subjectNickel-cobalt phosphate
dc.subjectSupercapattery
dc.subjectElectrolytes
dc.titleFast and green synthesis of battery-type nickel-cobalt phosphate (NxCyP) binder-free electrode for supercapatteryen_US
dc.typeArticleen_US
dspace.entity.typePublication
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