There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 187 | - |
dc.citation.number | 1-3 | - |
dc.citation.startPage | 178 | - |
dc.citation.title | MICROPOROUS AND MESOPOROUS MATERIALS | - |
dc.citation.volume | 102 | - |
dc.contributor.author | Kruk, Michal | - |
dc.contributor.author | Kohlhaas, Kevin M. | - |
dc.contributor.author | Dufour, Bruno | - |
dc.contributor.author | Celer, Ewa B. | - |
dc.contributor.author | Jaroniec, Mietek | - |
dc.contributor.author | Matyjaszewski, Krzysztof | - |
dc.contributor.author | Ruoff, Rodney S. | - |
dc.contributor.author | Kowalewski, Tornasz | - |
dc.date.accessioned | 2023-12-22T09:14:22Z | - |
dc.date.available | 2023-12-22T09:14:22Z | - |
dc.date.created | 2021-10-19 | - |
dc.date.issued | 2007-05 | - |
dc.description.abstract | Ordered and disordered mesoporous carbons synthesized from polyacrylonitrile using a templating method were heated under argon atmosphere at similar to 2470 K to partially graphitize them without the loss of mesoporosity. The high-temperature treatment led to a marked enhancement of graphitic ordering, which manifested itself in a narrowing of wide-angle XRD peaks, and in the appearance of domains of lateral dimensions 5-15 nm, consisting of stacked graphitic planes with interplanar spacing of similar to 0.34 nm. Raman spectroscopy provided evidence for the increased content of graphitic sp 2 carbon structures. The specific surface areas and total pore volumes of the carbons were 2 1 3 1 as high as 500-600 m(2) g(-1) and 0.8-1.8 cm(3) g(-1), respectively. These carbons had essentially no microporosity and their surface properties were similar to those of a graphitized carbon black Carbopack X. For ordered mesoporous carbons, the high-temperature treatment led to the loss of nanoscale periodicity, broadening of the pore size distribution (PSD) and similar to 40% decrease in the mesopore volume. In contrast, PSD and total pore volume of the disordered carbon were essentially unchanged. These results show that the high-temperature treatment of mesoporous carbons from PAN affords partially graphitic carbons with high specific surface areas and large pore volumes. | - |
dc.identifier.bibliographicCitation | MICROPOROUS AND MESOPOROUS MATERIALS, v.102, no.1-3, pp.178 - 187 | - |
dc.identifier.doi | 10.1016/j.micromeso.2006.12.027 | - |
dc.identifier.issn | 1387-1811 | - |
dc.identifier.scopusid | 2-s2.0-34247094387 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/54423 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S1387181106005671?via%3Dihub | - |
dc.identifier.wosid | 000246727900017 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Partially graphitic, high-surface-area mesoporous carbons from polyacrylonitrile templated by ordered and disordered mesoporous silicas | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Applied; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | mesoporous carbon | - |
dc.subject.keywordAuthor | graphitization | - |
dc.subject.keywordAuthor | templated synthesis | - |
dc.subject.keywordAuthor | high-surface-area solid | - |
dc.subject.keywordAuthor | polyacrylonitrile | - |
dc.subject.keywordPlus | TRANSFER RADICAL POLYMERIZATION | - |
dc.subject.keywordPlus | BLOCK-COPOLYMERS | - |
dc.subject.keywordPlus | NITROGEN ADSORPTION | - |
dc.subject.keywordPlus | NANOSTRUCTURED CARBON | - |
dc.subject.keywordPlus | LIQUID-CHROMATOGRAPHY | - |
dc.subject.keywordPlus | ORIENTED GRAPHITE | - |
dc.subject.keywordPlus | UNIFORM MESOPORES | - |
dc.subject.keywordPlus | MOLECULAR-SIEVES | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | PORE WALLS | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.