DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeong, I | - |
dc.contributor.author | Lee, J | - |
dc.contributor.author | Joseph, KLV | - |
dc.contributor.author | Lee, HI | - |
dc.contributor.author | Kim, JK | - |
dc.contributor.author | Yoon, S | - |
dc.contributor.author | Lee, J | - |
dc.date.accessioned | 2016-04-01T07:38:48Z | - |
dc.date.available | 2016-04-01T07:38:48Z | - |
dc.date.created | 2015-02-03 | - |
dc.date.issued | 2014-10 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.other | 2014-OAK-0000030835 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/26727 | - |
dc.description.abstract | Tungsten carbide/carbon (WC/C) composite nanofibers were successfully prepared through electro-spinning followed by a one-step heat treatment using in-situ carburization. The WC/C nanofibers were applied to low-cost and platinum-free counter electrodes for dye sensitized solar cells (DSSCs), and their catalytic activities were investigated and compared to platinum (Pt) CEs for triiodide/iodide (I-3(-)/I-) as well as organic disulfide/thiolate (T-2/T-) electrolytes. When WC/C nanofibers are used as the CE catalyst in iodine electrolytes, the DSSCs exhibited a power conversion efficiency (PCE) of 7.77%, corresponding to 96% of that of Pt CEs. In the case of T-2/T- redox couples, the DSSCs based on WC/C nanofibers achieved PCE of 5.85%, which is almost twice that of Pt (3.07%). The high catalytic activities of WC/C nanofibers are attributed to synergetic effects from the combination of catalytically active WC and one-dimensional (1D) conductive carbon acting as an efficient charge transport pathway. In addition, spray-coated WC/C nanofiber CE films have a three-dimensional porous network, enhancing the permeation of the electrolyte into the CE film and the diffusion of redox couples. The electrospinning process used for the synthesis of the WC/C nanofibers is facile and scalable and is therefore promising for the commercialization of DSSCs. (C) 2014 Elsevier Ltd. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | Elsevier | - |
dc.relation.isPartOf | NANO ENERGY | - |
dc.title | Low-cost electrospun WC/C composite nanofiber as a powerful platinum-free counter electrode for dye sensitized solar cell | - |
dc.type | Article | - |
dc.contributor.college | 화학공학과 | - |
dc.identifier.doi | 10.1016/J.NANOEN.2014.08.010 | - |
dc.author.google | Jeong, I | - |
dc.author.google | Lee, J | - |
dc.author.google | Joseph, KLV | - |
dc.author.google | Lee, HI | - |
dc.author.google | Kim, JK | - |
dc.author.google | Yoon, S | - |
dc.relation.volume | 9 | - |
dc.relation.startpage | 392 | - |
dc.relation.lastpage | 400 | - |
dc.contributor.id | 10076321 | - |
dc.relation.journal | NANO ENERGY | - |
dc.relation.sci | SCIE | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.9, pp.392 - 400 | - |
dc.identifier.wosid | 000344632800044 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 400 | - |
dc.citation.startPage | 392 | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 9 | - |
dc.contributor.affiliatedAuthor | Lee, J | - |
dc.contributor.affiliatedAuthor | Kim, JK | - |
dc.identifier.scopusid | 2-s2.0-84921441394 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 42 | - |
dc.description.scptc | 37 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | HIGHLY EFFICIENT | - |
dc.subject.keywordPlus | TITANIUM NITRIDE | - |
dc.subject.keywordPlus | TUNGSTEN CARBIDE | - |
dc.subject.keywordPlus | FREE CATALYSTS | - |
dc.subject.keywordPlus | PT-FREE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | NANOHYBRID | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordAuthor | Dye sensitized solar cell | - |
dc.subject.keywordAuthor | Counter electrode | - |
dc.subject.keywordAuthor | Electrospinning | - |
dc.subject.keywordAuthor | Nanofiber | - |
dc.subject.keywordAuthor | Platinum-free | - |
dc.subject.keywordAuthor | Iodine-free | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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