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dc.contributor.authorLaelabadi, Katayoon Gholami
dc.contributor.authorMoradi, Kayvan
dc.contributor.authorSalimi, Abdollah
dc.date.accessioned2024-10-24T09:58:33Z
dc.date.available2024-10-24T09:58:33Z
dc.date.issued2024
dc.identifier.citationLaelabadi, K. G., Moradi, K., & Salimi, A. (2024). Deep eutectic solvent and laser-reduced graphene oxide : synergistic effects in ternary nanocomposite supercapacitors. <i>Journal of Alloys and Compounds</i>, <i>1007</i>, Article 176403. <a href="https://doi.org/10.1016/j.jallcom.2024.176403" target="_blank">https://doi.org/10.1016/j.jallcom.2024.176403</a>
dc.identifier.otherCONVID_242661277
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/97673
dc.description.abstractIn recent years, flexible supercapacitors (FSCs) have gained considerable attention as reliable power supplies for wearable and portable electronic devices. However, optimizing both energy and power densities remains a challenge and requires effective enhancement of two key components: the electrolyte and the electrode. To address this, we have developed a new and efficient approach to FSC fabrication using a ternary nanocomposite of laser-reduced graphene@polyaniline/NiFe₂O₄(LrGO@Pani-NF) as the electrode and stable polymer hydrogels as the electrolyte. Also, we constructed FSC devices using a cross-linked poly (vinyl alcohol)/deep eutectic solvent (DES) gel electrolyte (PVA/ChCl/EG) and a PVA/Polyaniline/Nickel Ferrite gel electrolyte (PVA/Pani/NF). Among these devices, the LrGO@Pani-NF//LrGO@Pani-NF demonstrated a remarkable energy density of 48.4 Wh kg⁻¹ at 401.8 W kg⁻¹ and a long cycle life of 1000 cycles with 96.9% capacity retention at 2 mA cm⁻². Furthermore, the supercapacitors assembled with the DES gel exhibited excellent stability at higher voltages, operating within a potential window of -3.0 to 3.0 V. This work not only enhances FSC electrochemical performance with graphene nanocomposite electrodes but also introduces a novel method for FSC design using conductive, stable gel electrolytes, thereby improving energy storage capabilities under harsh conditions.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofseriesJournal of Alloys and Compounds
dc.rightsCC BY-NC-ND 4.0
dc.subject.otherflexible supercapacitors
dc.subject.otherdeep eutectic solvents
dc.subject.othergraphene/polyaniline/nickel ferrite nanocomposite
dc.subject.otherhydrogel electrolyte
dc.subject.otherlaser-induced graphene-based electrodes
dc.titleDeep eutectic solvent and laser-reduced graphene oxide : synergistic effects in ternary nanocomposite supercapacitors
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202410246529
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn0925-8388
dc.relation.volume1007
dc.type.versionacceptedVersion
dc.rights.copyright© 2024 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
dc.rights.accesslevelembargoedAccessfi
dc.relation.grantnumber338228
dc.subject.ysoelektrodit
dc.subject.ysosuperkondensaattorit
dc.subject.ysografeenioksidi
dc.subject.ysokomposiitit
dc.subject.ysonanotekniikka
dc.subject.ysosähkökemia
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p14077
jyx.subject.urihttp://www.yso.fi/onto/yso/p38242
jyx.subject.urihttp://www.yso.fi/onto/yso/p29041
jyx.subject.urihttp://www.yso.fi/onto/yso/p19234
jyx.subject.urihttp://www.yso.fi/onto/yso/p11463
jyx.subject.urihttp://www.yso.fi/onto/yso/p8093
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.1016/j.jallcom.2024.176403
dc.relation.funderResearch Council of Finlanden
dc.relation.funderSuomen Akatemiafi
jyx.fundingprogramAcademy Research Fellow, AoFen
jyx.fundingprogramAkatemiatutkija, SAfi
jyx.fundinginformationK. Gholami thanks the financial support of the research office of the University of Kurdistan for the postdoc program (grant number 98010562). K. M. expresses gratitude for the financial support received from the Academy of Finland project (#338228). The financial support of the Iranian nanotechnology initiative is also acknowledged.
dc.type.okmA1


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