Ultrafast supercapacitors based on boron-doped Ketjen black and aqueous electrolytes
DC Field | Value | Language |
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dc.contributor.author | Jin, Qing | - |
dc.contributor.author | Park, Jinwoo | - |
dc.contributor.author | Ji, Nayoung | - |
dc.contributor.author | Khandelwal, Mahima | - |
dc.contributor.author | Kim, Woong | - |
dc.date.accessioned | 2022-11-17T16:40:31Z | - |
dc.date.available | 2022-11-17T16:40:31Z | - |
dc.date.created | 2022-11-17 | - |
dc.date.issued | 2022-10-30 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/145656 | - |
dc.description.abstract | Compact supercapacitors (SCs) are considered as a promising alternative to bulky aluminum electrolytic capacitors (AECs) for alternating current (AC) line filtering applications. Although the recently-developed SCs based on heteroatom-doped and/or macro/mesoporous carbon materials exhibit sufficiently fast response speeds for such applications, improvements in their performance characteristics (e.g., capacitance) would be highly desirable. In particular, the SCs with heteroatom-doped carbons have thus far exhibited limited capacitances at high frequencies (< 0.5 mF cm(-2) at 120 Hz). In the present work, SCs with boron (B)-doped mesoporous Ketjen black (KB) and a 6 M KOH electrolyte are shown to exhibit a high areal capacitance of 1.67 mF cm(-2), along with a high frequency response (negative phase angle, -Phi = 81.5 degrees) at 120 Hz. The excellent performance of the B-doped KB SCs can be attributed to the improved wettability and electrical conductivity, and to the increased number of capacitive sites due to the B-doping. This demonstration may greatly contribute to the development of high performance SCs suitable for high frequency applications. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | DOUBLE-LAYER CAPACITOR | - |
dc.subject | ELECTROCHEMICAL CAPACITORS | - |
dc.subject | CARBON NANOTUBES | - |
dc.subject | GRAPHENE | - |
dc.subject | PERFORMANCE | - |
dc.subject | FILMS | - |
dc.subject | FABRICATION | - |
dc.subject | COMPACT | - |
dc.title | Ultrafast supercapacitors based on boron-doped Ketjen black and aqueous electrolytes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Woong | - |
dc.identifier.doi | 10.1016/j.apsusc.2022.154181 | - |
dc.identifier.scopusid | 2-s2.0-85133901798 | - |
dc.identifier.wosid | 000846643400001 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.600 | - |
dc.relation.isPartOf | APPLIED SURFACE SCIENCE | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 600 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | DOUBLE-LAYER CAPACITOR | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CAPACITORS | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | COMPACT | - |
dc.subject.keywordAuthor | Boron doping | - |
dc.subject.keywordAuthor | Supercapacitor | - |
dc.subject.keywordAuthor | Frequency response | - |
dc.subject.keywordAuthor | AC line filtering | - |
dc.subject.keywordAuthor | Wettability | - |
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