DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jo, C | - |
dc.contributor.author | An, S | - |
dc.contributor.author | Kim, Y | - |
dc.contributor.author | Shim, J | - |
dc.contributor.author | Yoon, S | - |
dc.contributor.author | Lee, J | - |
dc.date.accessioned | 2015-06-25T02:56:05Z | - |
dc.date.available | 2015-06-25T02:56:05Z | - |
dc.date.created | 2013-02-18 | - |
dc.date.issued | 2012-01 | - |
dc.identifier.issn | 1463-9076 | - |
dc.identifier.other | 2015-OAK-0000026448 | en_US |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/11907 | - |
dc.description.abstract | Mesocellular carbon foam (MSU-F-C) is functionalized with hollow nanographite by a simple solution-phase method to enhance the intrapenetrating electrical percolation network. The electrical conductivity of the resulting material, denoted as MSU-F-C-G, is increased by a factor of 20.5 compared with the pristine MSU-F-C. Hollow graphite nanoparticles are well-dispersed in mesocellular carbon foam, as confirmed by transmission electron microscopy (TEM), and the d spacing of the (002) planes is 0.343 nm, which is only slightly larger than that of pure graphite (0.335 nm), suggesting a random combination of graphitic and turbostratic stacking. After nanographitic functionalization, the BET surface area and total pore volume decreased from 928 m(2) g(-1) and 1.5 cm(3) g(-1) to 394 m(2) g(-1) and 0.7 cm(3) g(-1), respectively. Thermogravimetric analysis in air shows that the thermal stability of MSU-F-C-G is improved relative to that of MSU-F-C, and the one-step weight loss indicates that the nanographite is homogeneously functionalized on the MSU-F-C particles. When the resulting mesocellular carbon materials are used as electrode materials for an electric double layer capacitor (EDLC), the specific capacitances (C-sp) of the MSU-F-C and MSU-F-C-G electrodes at 4 mV s(-1) are 109 F g(-1) and 93 F g(-1), respectively. The MSU-F-C-G electrode exhibited a very high area capacitance (C-area, 23.5 mu F cm(-2)) compared with that of the MSU-F-C electrode (11.7 mu F cm(-2)), which is attributed to the enhanced intraparticle conductivity by the nanographitic functionalization. MSU-F-C-G exhibited high capacity retention (52%) at a very high scan rate of 512 mV s(-1), while only a 23% capacity retention at 512 mV s(-1) was observed in the case of the MSU-F-C electrode. When applied as an anode in a lithium ion battery, a significant increase in the initial efficiency (44%), high reversible discharge capacity (580 mA h g(-1)) in the lower voltage region, and a higher rate capability were observed. The high rate capability of the MSU-F-C-G electrode as charge storage was due to the low resistance derived from the nanographitic functionalization. | - |
dc.description.statementofresponsibility | open | en_US |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.relation.isPartOf | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.rights | BY_NC_ND | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.0/kr | en_US |
dc.title | Nano-graphite functionalized mesocellular carbon foam with enhanced intra-penetrating electrical percolation networks for high performance electrochemical energy storage electrode materials | - |
dc.type | Article | - |
dc.contributor.college | 화학공학과 | en_US |
dc.identifier.doi | 10.1039/C2CP40657H | - |
dc.author.google | Jo, C | en_US |
dc.author.google | An, S | en_US |
dc.author.google | Lee, J | en_US |
dc.author.google | Yoon, S | en_US |
dc.author.google | Shim, J | en_US |
dc.author.google | Kim, Y | en_US |
dc.relation.volume | 14 | en_US |
dc.relation.issue | 16 | en_US |
dc.relation.startpage | 5695 | en_US |
dc.relation.lastpage | 5704 | en_US |
dc.contributor.id | 10138815 | en_US |
dc.relation.journal | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | en_US |
dc.relation.index | SCI급, SCOPUS 등재논문 | en_US |
dc.relation.sci | SCI | en_US |
dc.collections.name | Journal Papers | en_US |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.14, no.16, pp.5695 - 5704 | - |
dc.identifier.wosid | 000302062200041 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 5704 | - |
dc.citation.number | 16 | - |
dc.citation.startPage | 5695 | - |
dc.citation.title | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.citation.volume | 14 | - |
dc.contributor.affiliatedAuthor | Lee, J | - |
dc.identifier.scopusid | 2-s2.0-84859318073 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 17 | - |
dc.description.scptc | 16 | * |
dc.date.scptcdate | 2018-10-274 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ORDERED MESOPOROUS CARBON | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | NANOSTRUCTURED MATERIALS | - |
dc.subject.keywordPlus | MOLECULAR-SIEVES | - |
dc.subject.keywordPlus | ANODE MATERIALS | - |
dc.subject.keywordPlus | LOW-COST | - |
dc.subject.keywordPlus | SILICA | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOTUBES | - |
dc.subject.keywordPlus | SUPERCAPACITORS | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Physics, Atomic, Molecular & Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Physics | - |
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