DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lu, Hao | ko |
dc.contributor.author | Kim, Kyoungsoo | ko |
dc.contributor.author | Kwon, Yonghyun | ko |
dc.contributor.author | Sun, Xiaoming | ko |
dc.contributor.author | Ryoo, Ryong | ko |
dc.contributor.author | Zhao, X. S. | ko |
dc.date.accessioned | 2018-07-24T02:58:21Z | - |
dc.date.available | 2018-07-24T02:58:21Z | - |
dc.date.created | 2018-07-16 | - |
dc.date.created | 2018-07-16 | - |
dc.date.issued | 2018-06 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v.6, no.22, pp.10388 - 10394 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | http://hdl.handle.net/10203/244550 | - |
dc.description.abstract | Hierarchical porous carbon prepared with calcium-containing nanocrystalline beta zeolite as the template and ethylene as the carbon source at a relatively low carbonization temperature (600 degrees C) displayed excellent electrocapacitive properties. The presence of both micro/mesopores and surface oxygencontaining groups on the ordered porous structure, along with a high specific surface area (2280 m(2) g(-1)) and pore volume (1.95 cm(3) g(-1) ) coupled with good wettability towards the electrolyte enabled the carbon to perform well as a supercapacitor electrode. This carbon electrode achieved a specific capacitance of 250 F g(-1) at a current density of 1 A g(-1) with 1 M H2SO4 as the aqueous electrolyte measured in a three-electrode system. A symmetric capacitor fabricated with the carbon as both electrodes exhibited a specific capacitance of 161 F g(-1 )at a current density of 1 A g(-1), and an excellent cycling stability. After being cycled 17 000 times and shelved for another two months, the electrode exhibited a specific capacitance of 246 F g(-1) at 1 Ag-1, 153% of the initial capacitance, and still maintained an excellent cycle stability. Besides, an all-solid-state supercapacitor cell fabricated with this carbon as both electrodes and polyvinyl alcohol/H2SO4 gel as the electrolyte displayed an areal specific capacitance of 413 mF cm(-2) at a current density of 0.25 mA cm(-2). | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | ELECTROCHEMICAL ENERGY-STORAGE | - |
dc.subject | HIERARCHICAL POROUS CARBON | - |
dc.subject | ELECTROCAPACITIVE PROPERTIES | - |
dc.subject | MESOPOROUS CARBON | - |
dc.subject | GRAPHENE | - |
dc.subject | CAPACITANCE | - |
dc.subject | ELECTRODES | - |
dc.subject | CARBONIZATION | - |
dc.subject | COMPOSITES | - |
dc.subject | NANOSHEETS | - |
dc.title | Zeolite-templated nanoporous carbon for high-performance supercapacitors | - |
dc.type | Article | - |
dc.identifier.wosid | 000437106300027 | - |
dc.identifier.scopusid | 2-s2.0-85048211824 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 22 | - |
dc.citation.beginningpage | 10388 | - |
dc.citation.endingpage | 10394 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.identifier.doi | 10.1039/c8ta00850g | - |
dc.contributor.localauthor | Ryoo, Ryong | - |
dc.contributor.nonIdAuthor | Lu, Hao | - |
dc.contributor.nonIdAuthor | Kim, Kyoungsoo | - |
dc.contributor.nonIdAuthor | Sun, Xiaoming | - |
dc.contributor.nonIdAuthor | Zhao, X. S. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ELECTROCHEMICAL ENERGY-STORAGE | - |
dc.subject.keywordPlus | HIERARCHICAL POROUS CARBON | - |
dc.subject.keywordPlus | ELECTROCAPACITIVE PROPERTIES | - |
dc.subject.keywordPlus | MESOPOROUS CARBON | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | CAPACITANCE | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | CARBONIZATION | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | NANOSHEETS | - |
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