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Jang, Ji-Wook
JW Energy Lab
Research Interests
  • Materials Science, Energy

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Graphene-carbon nanotube composite as an effective conducting scaffold to enhance the photoelectrochemical water oxidation activity of a hematite film

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dc.contributor.author Kim, Jae Young ko
dc.contributor.author Jang, Ji-Wook ko
dc.contributor.author Youn, Duck Hyun ko
dc.contributor.author Kim, Jae Yul ko
dc.contributor.author Kim, Eun Sun ko
dc.contributor.author Lee, Jae Sung ko
dc.date.available 2015-07-29T00:54:44Z -
dc.date.created 2015-07-27 ko
dc.date.issued 2012-10 -
dc.identifier.citation RSC ADVANCES, v.2, no.25, pp.9415 - 9422 ko
dc.identifier.issn 2046-2069 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/12814 -
dc.identifier.uri http://pubs.rsc.org/en/Content/ArticleLanding/2012/RA/c2ra21169f#!divAbstract ko
dc.description.abstract The iron oxide photoanode was modified with a graphene-carbon nanotube (CNT) composite conducting scaffold for efficient charge transfer from Fe2O3 particles to transparent conducting oxide substrate in photoelectrochemical water splitting cells. The Fe2O3-composite photoanode showed a photocurrent increase of 530% compared with to the bare Fe2O3 photoanode at 1.23 V vs. RHE, while the increase was only 200 and 240% for Fe2O3-CNT and Fe2O3-graphene photoanodes, respectively. This remarkable performance enhancement by the composite scaffold was attributed to synergistic effects induced by the formation of a 3D-like architecture from 1D CNT and 2D graphene. They become a spacer for each other forming a more open and highly exposed structure, in which both 2D graphene and 1D CNT can exist in the forms with much less self-agglomeration, thus not only enlarging the contact area between the conducting scaffold and Fe2O3 particles but also recovering in part the intrinsic conducting ability of graphene and CNT ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ROYAL SOC CHEMISTRY ko
dc.subject CHARGE-TRANSFER ko
dc.subject HYBRID FILMS ko
dc.subject SOLAR-CELLS ko
dc.subject OXIDE ko
dc.subject ELECTRODES ko
dc.title Graphene-carbon nanotube composite as an effective conducting scaffold to enhance the photoelectrochemical water oxidation activity of a hematite film ko
dc.title.alternative Graphene?carbon nanotube composite as an effective conducting scaffold to enhance the photoelectrochemical water oxidation activity of a hematite film ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84867019375 ko
dc.identifier.wosid 000312061000017 ko
dc.type.rims ART ko
dc.description.wostc 41 *
dc.description.scopustc 38 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1039/c2ra21169f ko
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