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DC Field | Value | Language |
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dc.citation.endPage | 3490 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 3483 | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 12 | - |
dc.contributor.author | Song, Min-Kyu | - |
dc.contributor.author | Cheng, Shuang | - |
dc.contributor.author | Chen, Haiyan | - |
dc.contributor.author | Qin, Wentao | - |
dc.contributor.author | Nam, Kyung-Wan | - |
dc.contributor.author | Xu, Shucheng | - |
dc.contributor.author | Yang, Xiao-Qing | - |
dc.contributor.author | Bongiorno, Angelo | - |
dc.contributor.author | Lee, Jangsoo | - |
dc.contributor.author | Bai, Jianming | - |
dc.contributor.author | Tyson, Trevor A. | - |
dc.contributor.author | Cho, Jaephil | - |
dc.contributor.author | Liu, Meilin | - |
dc.date.accessioned | 2023-12-22T05:06:59Z | - |
dc.date.available | 2023-12-22T05:06:59Z | - |
dc.date.created | 2013-06-10 | - |
dc.date.issued | 2012-07 | - |
dc.description.abstract | While pseudocapacitors represent a promising option for electrical energy storage, the performance of the existing ones must be dramatically enhanced to meet today's ever-increasing demands for many emerging applications. Here we report a nanostructured, rnixed-valent manganese oxide film that exhibits anomalously high specific capacitance (similar to 2530 F/g of manganese oxide, measured at 0.61 A/g in a two-electrode configuration with loading of active materials similar to 0.16 mg/cm(2)) while maintaining excellent power density and cycling life. The dramatic performance enhancement is attributed to its unique mixed-valence state with porous nanoarchitecture, which may facilitate rapid mass transport and enhance surface double-layer capacitance, while promoting facile redox reactions associated with charge storage by both Mn and O sites, as suggested by in situ X-ray absorption spectroscopy (XAS) and density functional theory calculations. The new charge storage mechanisms (in addition to redox reactions of cations) may offer critical insights to rational design of a new-generation energy storage devices. | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.12, no.7, pp.3483 - 3490 | - |
dc.identifier.doi | 10.1021/nl300984y | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.scopusid | 2-s2.0-84863848926 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/2986 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84863848926 | - |
dc.identifier.wosid | 000306296200022 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Anomalous Pseudocapacitive Behavior of a Nanostructured, Mixed-Valent Manganese Oxide Film for Electrical Energy Storage | - |
dc.type | Article | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Energy storage | - |
dc.subject.keywordAuthor | electrochemical capacitors | - |
dc.subject.keywordAuthor | mixed-valent compounds | - |
dc.subject.keywordAuthor | enhanced pseudocapacitance | - |
dc.subject.keywordAuthor | in situ X-ray absorption spectroscopy | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CAPACITORS | - |
dc.subject.keywordPlus | CHARGE COMPENSATION | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | SUPERCAPACITOR | - |
dc.subject.keywordPlus | MNO2 | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | DEPOSITION | - |
dc.subject.keywordPlus | BATTERIES | - |
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