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권태혁

Kwon, Tae-Hyuk
Energy Recognition Lab.
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dc.citation.startPage 104501 -
dc.citation.title NANO ENERGY -
dc.citation.volume 70 -
dc.contributor.author TNguyen Dien Kha Tu -
dc.contributor.author Park, Jaehyun -
dc.contributor.author Na, Sangyun -
dc.contributor.author Kim, Kwang Min -
dc.contributor.author Kwon, Tae-Hyuk -
dc.contributor.author Ko, Hyunhyub -
dc.contributor.author Kang, Seok Ju -
dc.date.accessioned 2023-12-21T17:44:12Z -
dc.date.available 2023-12-21T17:44:12Z -
dc.date.created 2020-01-31 -
dc.date.issued 2020-04 -
dc.description.abstract Nylon-11, the most studied member of the odd-numbered nylon family, is a promising functional material for future electronic devices or energy storage systems. To utilize nylon-11 in those applications, it is necessary to control the formation of the applicable metastable crystal phases such as the piezoelectric γ-phase or ferroelectric δ′-phase. Herein, we describe a facile method of fabricating metastable γ-phase nylon-11 fibers via electrospinning with a tailored solvent system. By using a solvent mixture of 1,1,1,3,3,3-hexafluoro-2-propanol and trifluoroacetic acid [HFIP:TFA (75:25 mol%)], we could fully eliminate the formation of the most stable α-phase and create metastable γ-phase nylon-11 fibers. The electrospun γ-phase nylon-11 fibrous membrane displayed a typical piezoelectric response when it experienced a periodic external force. Furthermore, the γ-phase nylon-11 fibrous membrane exhibited higher thermal stability, electrolyte wettability, and ionic conductivity than the conventional Celgard separator. Consequently, it achieved decent performance when applied as a separator in a sodium metal half-cell. This study indicates that piezoelectric γ-phase nylon-11 fibrous membranes have great potential for further development in energy harvesting and storage, especially as piezo-separators in self-charging power cells. -
dc.identifier.bibliographicCitation NANO ENERGY, v.70, pp.104501 -
dc.identifier.doi 10.1016/j.nanoen.2020.104501 -
dc.identifier.issn 2211-2855 -
dc.identifier.scopusid 2-s2.0-85078502910 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/31114 -
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S2211285520300586 -
dc.identifier.wosid 000521052900026 -
dc.language 영어 -
dc.publisher Elsevier BV -
dc.title Co-solvent induced piezoelectric γ-phase nylon-11 separator for sodium metal battery -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied -
dc.relation.journalResearchArea Chemistry; Science & Technology - Other Topics; Materials Science; Physics -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Nylon-11 -
dc.subject.keywordAuthor Crystalline phase -
dc.subject.keywordAuthor Piezoelectric -
dc.subject.keywordAuthor Separator -
dc.subject.keywordAuthor Sodium battery -
dc.subject.keywordPlus FERROELECTRIC POLARIZATION -
dc.subject.keywordPlus CRYSTALLINE-STRUCTURE -
dc.subject.keywordPlus BEHAVIOR -
dc.subject.keywordPlus FIBERS -

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