Publication:
Hydrothermally etched MXene-based nanocomposite electrode for supercapattery

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dc.citedby1
dc.contributor.authorWee Shen Loong N.en_US
dc.contributor.authorLiew J.en_US
dc.contributor.authorPershaanaa M.en_US
dc.contributor.authorFarhana N.K.en_US
dc.contributor.authorPrasankumar T.en_US
dc.contributor.authorBashir S.en_US
dc.contributor.authorRamesh K.en_US
dc.contributor.authorRamesh S.en_US
dc.contributor.authorid59351154100en_US
dc.contributor.authorid58771904600en_US
dc.contributor.authorid57223119720en_US
dc.contributor.authorid44361049200en_US
dc.contributor.authorid57191483300en_US
dc.contributor.authorid56978832100en_US
dc.contributor.authorid57220754709en_US
dc.contributor.authorid7103211834en_US
dc.date.accessioned2025-03-03T07:41:37Z
dc.date.available2025-03-03T07:41:37Z
dc.date.issued2024
dc.description.abstractThe requirements of energy storage devices have only been ever-increasing, from greater charge storage to faster charging to boost the energy and power densities. However, existing lithium-ion batteries are limited by their power density due to long charging duration while supercapacitors have limited energy density and higher power density. A supercapattery, a device that possesses the qualities of a battery and a supercapacitor, is being developed to achieve higher energy and power densities in a single device. MXenes are a group of promising materials to be used as electrodes in supercapatteries for their exceptional pseudocapacitive properties. Herein, Ti3C2Tx MXene was synthesized using hydrothermal-assisted etching with various in situ HF etchants, and the effects of using different cationic intercalants were explored. This approach boosts the etching efficiency of weaker etchants, ensuring the proper exfoliation of MXene precursors whilst maintaining the structural integrity of MXenes and removing the need to delaminate and intercalate them post-synthesis. Combined with graphene by sonication, the resulting wrappage of graphene around MXene could increase the electrical conductivity, promote the electrode electrolyte interaction, and improve the electrochemical performance of MXene-based electrode signification and demonstrating synergistic effects. A supercapattery was fabricated by pairing activated carbon as the capacitive electrode and optimized MXene-graphene composite (MG-21) as the pseudocapacitive electrode. The device achieved a specific capacitance of 662.02F/g and an energy density of 20.58 Wh kg?1 at 3 A/g and exhibited an excellent energy and power density of 23.02 Wh kg?1 at 0.5 A/g and 13.1 kW kg?1 at 10 A/g, respectively. ? 2024 Elsevier B.V.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo118678
dc.identifier.doi10.1016/j.jelechem.2024.118678
dc.identifier.scopus2-s2.0-85205439999
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85205439999&doi=10.1016%2fj.jelechem.2024.118678&partnerID=40&md5=8d86c6d6cd1db436d668e00865c9f625
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36223
dc.identifier.volume973
dc.publisherElsevier B.V.en_US
dc.sourceScopus
dc.sourcetitleJournal of Electroanalytical Chemistry
dc.subjectCarbon electrodes
dc.subjectEnergy density
dc.subjectGraphene composites
dc.subjectGraphenes
dc.subjectHigh-power-density
dc.subjectMxene
dc.subjectMxene/graphene composite
dc.subjectPower densities
dc.subjectPseudocapacitive
dc.subjectPseudocapacitive electrode
dc.subjectSupercapattery
dc.subjectElectrolytes
dc.titleHydrothermally etched MXene-based nanocomposite electrode for supercapatteryen_US
dc.typeArticleen_US
dspace.entity.typePublication
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