File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

백종범

Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Full metadata record

DC Field Value Language
dc.citation.number 9 -
dc.citation.startPage 1605717 -
dc.citation.title ADVANCED FUNCTIONAL MATERIALS -
dc.citation.volume 27 -
dc.contributor.author Zhao, Xianglong -
dc.contributor.author Li, Feng -
dc.contributor.author Wang, Ruining -
dc.contributor.author Seo, Jeong-Min -
dc.contributor.author Choi, Hyun-Jung -
dc.contributor.author Jung, Sun-Min -
dc.contributor.author Mahmood. Javeed -
dc.contributor.author Jeon, In-Yup -
dc.contributor.author Baek, Jong-Beom -
dc.date.accessioned 2023-12-21T22:38:23Z -
dc.date.available 2023-12-21T22:38:23Z -
dc.date.created 2017-02-03 -
dc.date.issued 2017-03 -
dc.description.abstract Hierarchically structured nitrogen-doped carbon nanotube (NCNT) composites, with copper (Cu) nanoparticles embedded uniformly within the nanotube walls and cobalt oxide (CoxOy) nanoparticles decorated on the nanotube surfaces, are fabricated via a combinational process. This process involves the growth of Cu embedded CNTs by low- and high-temperature chemical vapor deposition, post-treatment with ammonia for nitrogen doping of these CNTs, precipitation-assisted separation of NCNTs from cobalt nitrate aqueous solution, and finally thermal annealing for CoxOy decoration. Theoretical calculations show that interaction of Cu nanoparticles with CNT walls can effectively decrease the work function of CNT surfaces and improve adsorption of hydroxyl ions onto the CNT surfaces. Thus, the activities of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) are significantly enhanced. Because of this benefit, further nitrogen doping, and synergistic coupling between CoxOy and NCNTs, Cu@NCNT/CoxOy composites exhibit ORR activity comparable to that of commercial Pt/C catalysts and high OER activity (outperforming that of IrO2 catalysts). More importantly, the composites display superior long-term stability for both ORR and OER. This simple but general synthesis protocol can be extended to design and synthesis of other metal/metal oxide systems for fabrication of high-performance carbon-based electrocatalysts with multifunctional catalytic activities. -
dc.identifier.bibliographicCitation ADVANCED FUNCTIONAL MATERIALS, v.27, no.9, pp.1605717 -
dc.identifier.doi 10.1002/adfm.201605717 -
dc.identifier.issn 1616-301X -
dc.identifier.scopusid 2-s2.0-85009785257 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/21679 -
dc.identifier.url http://onlinelibrary.wiley.com/doi/10.1002/adfm.201605717/abstract -
dc.identifier.wosid 000395409200017 -
dc.language 영어 -
dc.publisher WILEY-V C H VERLAG GMBH -
dc.title Controlled Fabrication of Hierarchically Structured Nitrogen-Doped Carbon Nanotubes as a Highly Active Bifunctional Oxygen Electrocatalyst -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter -
dc.relation.journalResearchArea Chemistry; Science & Technology - Other Topics; Materials Science; Physics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor anodic aluminum oxide -
dc.subject.keywordAuthor carbon nanotubes -
dc.subject.keywordAuthor chemical vapor deposition -
dc.subject.keywordAuthor oxygen evolution reaction -
dc.subject.keywordAuthor oxygen reduction reaction -
dc.subject.keywordPlus CHEMICAL-VAPOR-DEPOSITION -
dc.subject.keywordPlus REDUCTION REACTION -
dc.subject.keywordPlus CO3O4 NANOCRYSTALS -
dc.subject.keywordPlus AIR BATTERIES -
dc.subject.keywordPlus FUEL-CELLS -
dc.subject.keywordPlus GRAPHENE -
dc.subject.keywordPlus EVOLUTION -
dc.subject.keywordPlus CATALYST -
dc.subject.keywordPlus NANOCONTAINERS -
dc.subject.keywordPlus PERFORMANCE -

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.