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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 472 | - |
dc.citation.startPage | 465 | - |
dc.citation.title | CARBON | - |
dc.citation.volume | 93 | - |
dc.contributor.author | Kim, Guntae | - |
dc.contributor.author | Jeon, In-Yup | - |
dc.contributor.author | Kim, Changmin | - |
dc.contributor.author | Baek, Jong-Beom | - |
dc.date.accessioned | 2023-12-22T00:38:16Z | - |
dc.date.available | 2023-12-22T00:38:16Z | - |
dc.date.created | 2015-07-28 | - |
dc.date.issued | 2015-11 | - |
dc.description.abstract | Iodination of carbon-based materials is known to improve their electrocatalytic activity for oxygen reduction reaction. Here, we report iodination of activated charcoal by mechanochemical ball-milling activated charcoal (AcC) in the presence of iodine (I-2). The electrodes fabricated from the resultant iodinated AcC (IAcC) show efficient metal-free electrocatalytic activity for fuel cells and hybrid Li-air cells. In addition to iodination, the ball-milling can not only purify AcC but also change morphology. The iodine content in IAcC reaches as high as 0.59 at.% (5.8 wt.%), the amorphous powder-type morphology of the starting AcC has been changed to the flake-type sheets of the resulting IAcC, and metallic impurities in the IAcC are substantially reduced. The results indicate that the mechanochemical ball-milling simultaneously induces functionalization, structural restoration and purification. Furthermore, the IAcC is readily dispersible in various polar solvents, allowing the fabrication of electrodes via solution processing. The metal-free IAcC cathodes exhibited outstanding electrocatalytic activities for fuel cells and hybrid Li-air cells with higher selectivity, longer-term stability and better tolerance to methanol crossover/CO poisoning effects than the starting AcC and comparable with commercial Pt/C counterparts. | - |
dc.identifier.bibliographicCitation | CARBON, v.93, pp.465 - 472 | - |
dc.identifier.doi | 10.1016/j.carbon.2015.05.075 | - |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.scopusid | 2-s2.0-84938603640 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/13044 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0008622315004820 | - |
dc.identifier.wosid | 000360292100049 | - |
dc.language | 영어 | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Mechanochemically driven iodination of activated charcoal for metal-free electrocatalyst for fuel cells and hybrid Li-air cells | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | SUPPORTS | - |
dc.subject.keywordPlus | NANOPLATELETS | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | OXYGEN REDUCTION REACTION | - |
dc.subject.keywordPlus | DOPED GRAPHENE | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.subject.keywordPlus | SURFACE MODIFICATION | - |
dc.subject.keywordPlus | CARBON | - |
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