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송현곤

Song, Hyun-Kon
eclat: electrochemistry lab of advanced technology
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dc.citation.endPage 11604 -
dc.citation.number 23 -
dc.citation.startPage 11598 -
dc.citation.title JOURNAL OF MATERIALS CHEMISTRY -
dc.citation.volume 22 -
dc.contributor.author Seo, Eunyong -
dc.contributor.author Lee, Taemin -
dc.contributor.author Lee, Kyu Tae -
dc.contributor.author Song, Hyun-Kon -
dc.contributor.author Kim, Byeong-Su -
dc.date.accessioned 2023-12-22T05:08:34Z -
dc.date.available 2023-12-22T05:08:34Z -
dc.date.created 2013-06-04 -
dc.date.issued 2012-06 -
dc.description.abstract The facile synthetic approach to ruthenium oxide nanoparticles using double hydrophilic block copolymers (DHBCs) and their application toward the supercapacitor are presented. Nanostructured hydrous ruthenium oxide (RuO2) nanoparticles are synthesized using a double hydrophilic block copolymer of poly(ethylene oxide)-block-poly(acrylic acid) (PEO-b-PAA) as a template, forming a micelle upon addition of the ruthenium precursor, which then transformed into RuO2 nanoparticles of controlled dimension with reducing agents. The synthesized hydrous RuO2 center dot xH(2)O nanoparticles are very stable for several months without any noticeable aggregates. Furthermore, we have demonstrated their utility in application as supercapacitors. Through annealing at 400 degrees C, we found that the crystallinity of RuO2 nanoparticles increases considerably with a simultaneous transformation of the surrounding double hydrophilic block copolymer into ionic and electronic conducting buffer layers atop RuO2 nanoparticles, which contribute to the significant enhancement of the overall specific capacitance from 106 to 962 F g(-1) at 10 mV s(-1). The RuO2 nanoparticles annealed at 400 degrees C also exhibit a superior retention of capacitance over 1000 cycles at very high charge-discharge rates at 20 A g(-1). We envision that the double hydrophilic block copolymer will provide a facile and general tool in creating functional nanostructures with controlled dimensions that are useful for various applications. -
dc.identifier.bibliographicCitation JOURNAL OF MATERIALS CHEMISTRY, v.22, no.23, pp.11598 - 11604 -
dc.identifier.doi 10.1039/c2jm30738c -
dc.identifier.issn 0959-9428 -
dc.identifier.scopusid 2-s2.0-84862225318 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/2550 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84862225318 -
dc.identifier.wosid 000304351400028 -
dc.language 영어 -
dc.publisher ROYAL SOC CHEMISTRY -
dc.title Versatile double hydrophilic block copolymer: dual role as synthetic nanoreactor and ionic and electronic conduction layer for ruthenium oxide nanoparticle supercapacitors -
dc.type Article -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Chemistry; Materials Science -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -

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