A Facile Two-Step PVP-Assisted Deposition of Co-Activated Nanosized Nickel Hydroxide Directly on a Substrate for Large-Scale Production of Supercapacitor Electrodes

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dc.contributor.authorKotok, Valeriien
dc.contributor.authorOndrejka, Peteren
dc.contributor.authorMikolášek, Miroslaven
dc.contributor.authorSojková, Michaelaen
dc.contributor.authorNovák, Patriken
dc.contributor.authorGregor, Marošen
dc.contributor.authorKovalenko, Vadymen
dc.contributor.authorSukhyy, Kostyantyn M.en
dc.date.accessioned2024-12-19T12:43:36Z
dc.date.available2024-12-19T12:43:36Z
dc.date.issued2023
dc.descriptionK. Sukhyy: ORCID 0000-0002-4585-8268en
dc.description.abstractENG: The self-decomposition reaction of the nickel ammonia complex was used for the nickel hydroxide formation on the nickel foam with further modification in several ways. The addition of polyvinyl pyrrolidone (PVP) and the electrochemical or chemical activation with cobalt hydroxide was used to modify the formation method. In all cases, structures with Ni(OH)2 nanoflakes were formed. It was found that the flower-like particles of Co(OH)2 were precipitated during chemical activation among the nanoflakes. It was shown that the presence of PVP during the nickel ammonia complex decomposition suppressed the highly branched particles. The absence of the highly branched particles increased the capacitive properties of the formed electrode at high current densities. The highest capacitance in 1408 F/g at 1 A/g was shown for the sample precipitated with the PVP presence and the further chemical activation by cobalt.en
dc.description.sponsorshipUkrainian State University of Chemical Technology, Dnipro, Ukraine; Institute of Electronics and Photonics, Slovak University of Technology in Bratislava, Slovakia; nstitute of Electrical Engineering, Slovak Academy of Sciences in Bratislava, Slovakia; Physics and Informatics Comenius University, Bratislava, Slovakiaen
dc.identifier.citationKotok V., Ondrejka P., Mikolášek M., Sojková M., Novák P., Gregor M., Kovalenko V., Sukhyy, K. M. A Facile Two-Step PVP-Assisted Deposition of Co-Activated Nanosized Nickel Hydroxide Directly on a Substrate for Large-Scale Production of Supercapacitor Electrodes. Coatings. 2023. Vol. 13, No. 1. Art. 84. DOI: https://doi.org/10.3390/coatings13010084.en
dc.identifier.doihttps://doi.org/10.3390/coatings13010084en
dc.identifier.issn2079-6412
dc.identifier.urihttps://www.mdpi.com/2079-6412/13/1/84en
dc.identifier.urihttps://crust.ust.edu.ua/handle/123456789/19328en
dc.language.isoen
dc.publisherMDPIen
dc.subjectTECHNOLOGY::Materials scienceen
dc.subjectnickel hydroxideen
dc.subjectsupercapacitoren
dc.subjectcobalt hydroxideen
dc.subjectpolyvynilpyrllidoneen
dc.subjectnanoflakesen
dc.subject.classificationNATURAL SCIENCES::Chemistryen
dc.titleA Facile Two-Step PVP-Assisted Deposition of Co-Activated Nanosized Nickel Hydroxide Directly on a Substrate for Large-Scale Production of Supercapacitor Electrodesen
dc.typeArticleen
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