Microstructural control of new intercalation layered titanoniobates with large and reversible d-spacing for easy Na+ ion uptake
DC Field | Value | Language |
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dc.contributor.author | Park, Hyunjung | - |
dc.contributor.author | Kwon, Jiseok | - |
dc.contributor.author | Choi, Heechae | - |
dc.contributor.author | Song, Taeseup | - |
dc.contributor.author | Paik, Ungyu | - |
dc.date.accessioned | 2021-07-30T05:33:10Z | - |
dc.date.available | 2021-07-30T05:33:10Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2017-10 | - |
dc.identifier.issn | 2375-2548 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/5375 | - |
dc.description.abstract | Key issues for Na-ion batteries are the development of promising electrode materials with favorable sites for Na+ ion intercalation/deintercalation and an understanding of the reaction mechanisms due to its high activation energy and poor electrochemical reversibility. We first report a layered H0.43Ti0.93Nb1.07O5 as a new anode material. This anode material is engineered to have dominant (200) and (020) planes with both a sufficiently large d-spacing of ~8.3 Å and two-dimensional ionic channels for easy Na+ ion uptake, which leads to a small volume expansion of ~0.6 Å along the c direction upon Na insertion (discharging) and the lowest energy barrier of 0.19 eV in the [020] plane among titanium oxide–based materials ever reported. The material intercalates and deintercalates reversibly 1.7 Na ions (~200 mAh g−1) without a capacity fading in a potential window of 0.01 to 3.0 V versus Na/Na+. Na insertion/deinsertion takes place through a solid-solution reaction without a phase separation, which prevents coherent strain or stress in the microstructure during cycling and ensures promising sodium storage properties. These findings demonstrate a great potential of H0.43Ti0.93Nb1.07O5 as the anode, and our strategy can be applied to other layered metal oxides for promising sodium storage properties. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | - |
dc.title | Microstructural control of new intercalation layered titanoniobates with large and reversible d-spacing for easy Na+ ion uptake | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Song, Taeseup | - |
dc.contributor.affiliatedAuthor | Paik, Ungyu | - |
dc.identifier.doi | 10.1126/sciadv.1700509 | - |
dc.identifier.scopusid | 2-s2.0-85041818319 | - |
dc.identifier.wosid | 000417998700010 | - |
dc.identifier.bibliographicCitation | SCIENCE ADVANCES, v.3, no.10, pp.1 - 9 | - |
dc.relation.isPartOf | SCIENCE ADVANCES | - |
dc.citation.title | SCIENCE ADVANCES | - |
dc.citation.volume | 3 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 9 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | ELECTROCHEMICAL-BEHAVIOR | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | ANATASE TIO2 | - |
dc.subject.keywordPlus | SODIUM | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | OXIDES | - |
dc.subject.keywordPlus | PHASES | - |
dc.identifier.url | https://www.science.org/doi/10.1126/sciadv.1700509 | - |
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