DC Field | Value | Language |
---|---|---|
dc.contributor.author | Liu, DW | - |
dc.contributor.author | Liu, YY | - |
dc.contributor.author | Garcia, BB | - |
dc.contributor.author | Zhang, QF | - |
dc.contributor.author | Pan, AQ | - |
dc.contributor.author | Jeong, YH | - |
dc.contributor.author | Cao, GZ | - |
dc.date.accessioned | 2015-06-25T02:24:48Z | - |
dc.date.available | 2015-06-25T02:24:48Z | - |
dc.date.created | 2009-12-11 | - |
dc.date.issued | 2009-01 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.other | 2015-OAK-0000019463 | en_US |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/10913 | - |
dc.description.abstract | V2O5 xerogel films were fabricated by casting V2O5 sols onto FTO glass substrates and annealing at 300 degrees C for 3 hours in nitrogen and air. The films annealed in nitrogen and air possessed different grain size and crystallinity. Optical absorption measurements and electrochemical impedance analyses revealed a reduced optical bandgap and enhanced electrical conductivity of N-2 annealed V2O5 film. Lithium ion intercalation measurements showed that at a charge/discharge current density of 600 mAg(-1), the N-2 annealed sample possessed noticeably better lithium ion storage capability. In contrast to the air annealed sample, which started with a discharge capacity of 152 mAhg(-1) but after 50 cycles the capacity had decreased to a low value of only 44 mAhg(-1), the N-2 annealed sample started with a low value of 68 mAhg(-1) but the capacity increased sharply to a high value of 158 mAhg(-1) at the 24(th) cycle, followed by little capacity degradation in later cycles and after 50 cycles, the discharge capacity was still as high as 148 mAhg(-1). Much improved lithium ion intercalation capacity and cyclic stability could be attributed to surface defects V4+ and/or V3+ and associated oxygen vacancies introduced by N-2 annealing as well as much less crystallized vanadium oxide. | - |
dc.description.statementofresponsibility | open | en_US |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.rights | BY_NC_ND | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.0/kr | en_US |
dc.title | V2O5 xerogel electrodes with much enhanced lithium-ion intercalation properties with N-2 annealing | - |
dc.type | Article | - |
dc.contributor.college | 정보전자융합공학부 | en_US |
dc.identifier.doi | 10.1039/B914436F | - |
dc.author.google | Liu, DW | en_US |
dc.author.google | Liu, YY | en_US |
dc.author.google | Cao, GZ | en_US |
dc.author.google | Jeong, YH | en_US |
dc.author.google | Pan, AQ | en_US |
dc.author.google | Zhang, QF | en_US |
dc.author.google | Garcia, BB | en_US |
dc.relation.volume | 19 | en_US |
dc.relation.issue | 46 | en_US |
dc.relation.startpage | 8789 | en_US |
dc.relation.lastpage | 8795 | en_US |
dc.contributor.id | 10106021 | en_US |
dc.relation.journal | JOURNAL OF MATERIALS CHEMISTRY | 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 | JOURNAL OF MATERIALS CHEMISTRY, v.19, no.46, pp.8789 - 8795 | - |
dc.identifier.wosid | 000271907800012 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 8795 | - |
dc.citation.number | 46 | - |
dc.citation.startPage | 8789 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.citation.volume | 19 | - |
dc.contributor.affiliatedAuthor | Jeong, YH | - |
dc.identifier.scopusid | 2-s2.0-70450160605 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 79 | - |
dc.description.scptc | 81 | * |
dc.date.scptcdate | 2018-10-274 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CHARACTERISTICS | - |
dc.subject.keywordPlus | VANADIUM-OXIDES | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | DENSITY | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | DEFECTS | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
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