Layer-by-layer assembled (high-energy carbon nanotube/conductive carbon nanotube)(n) nanocomposites for high volumetric capacitance supercapacitor electrodes
DC Field | Value | Language |
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dc.contributor.author | Shin, Dongyeeb | - |
dc.contributor.author | Ko, Yongmin | - |
dc.contributor.author | Cho, Jinhan | - |
dc.date.accessioned | 2021-09-04T05:00:27Z | - |
dc.date.available | 2021-09-04T05:00:27Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2016 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/90146 | - |
dc.description.abstract | We introduce high-performance ultrathin electrochemical electrodes based on multi-stacking of high-energy multiwall carbon nanotube (MWCNT) hybrids and conductive MWCNTs. The MWCNT hybrids coated with oleic acid-stabilized pseudocapacitive nanoparticles (i. e., OA-PC-MWCNTs) were assembled via a sequential covalent-bonded layer-by-layer (LbL) approach with amine-functionalized MWCNTs (NH2-MWCNT) in organic media, generating a highly porous structure and allowing for precise nanoscale control of the electrode thickness. The resultant NH2-MWCNT/OA-PC-MWCNT multilayer electrodes exhibited a high energy capacity and remarkable operational stability, considerably higher than the capacity and stability of conventional blended nanocomposite or electrostatic LbL-assembled electrodes. The volumetric capacitances of the (NH2-MWCNT/OA-Fe3O4-MWCNT)(20) and (NH2-MWCNT/OA-MnO-MWCNT)(20) were approximately 394 +/- 10, and 674 +/- 13 F cm(-3) at 1 A cm(-3), respectively. Additionally, these electrodes maintained their high volumetric capacitances without loss of initial capacitance even after 10 000 cycles; this cycling stability stemmed from the formation of chemically stable covalent bonds between the MWCNT hybrids and NH2-MWCNTs and between the PC NPs and NH2-MWCNTs. Given that a variety of PC NPs can be used to prepare MWCNT hybrids and that this approach can be further expanded to nanocomposite films including LbL-assembled multilayers, our approach may provide a promising platform for designing electrodes for use as thin film-type energy storage devices. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HIGH-PERFORMANCE | - |
dc.subject | MESOPOROUS CARBON | - |
dc.subject | HYDROTHERMAL SYNTHESIS | - |
dc.subject | DECORATED CARBON | - |
dc.subject | GRAPHENE SHEETS | - |
dc.subject | IRON-OXIDE | - |
dc.subject | HIGH-POWER | - |
dc.subject | ENERGY | - |
dc.subject | NANOARCHITECTURES | - |
dc.subject | NANOPARTICLES | - |
dc.title | Layer-by-layer assembled (high-energy carbon nanotube/conductive carbon nanotube)(n) nanocomposites for high volumetric capacitance supercapacitor electrodes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Cho, Jinhan | - |
dc.identifier.doi | 10.1039/c6ra02461k | - |
dc.identifier.scopusid | 2-s2.0-84959378032 | - |
dc.identifier.wosid | 000371535200062 | - |
dc.identifier.bibliographicCitation | RSC ADVANCES, v.6, no.26, pp.21844 - 21853 | - |
dc.relation.isPartOf | RSC ADVANCES | - |
dc.citation.title | RSC ADVANCES | - |
dc.citation.volume | 6 | - |
dc.citation.number | 26 | - |
dc.citation.startPage | 21844 | - |
dc.citation.endPage | 21853 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | MESOPOROUS CARBON | - |
dc.subject.keywordPlus | HYDROTHERMAL SYNTHESIS | - |
dc.subject.keywordPlus | DECORATED CARBON | - |
dc.subject.keywordPlus | GRAPHENE SHEETS | - |
dc.subject.keywordPlus | IRON-OXIDE | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | NANOARCHITECTURES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
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