Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Lee, Jeongmin | - |
dc.contributor.author | Kwak, Hunho H. | - |
dc.contributor.author | Bak, Sang-eun | - |
dc.contributor.author | Lee, Geun Jun | - |
dc.contributor.author | Hong, Seung-Tae | - |
dc.contributor.author | Abbas, Muhammad A. | - |
dc.contributor.author | Bang, Jin Ho | - |
dc.date.accessioned | 2022-02-18T13:30:01Z | - |
dc.date.available | 2022-02-18T13:30:01Z | - |
dc.date.created | 2022-01-27 | - |
dc.date.issued | 2022-01 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/16212 | - |
dc.description.abstract | Entropy-stabilized titanium niobium oxides (TNOs) with crystallographic shear structures (e.g., TiNb2O7 and Ti2Nb10O29) are generally synthesized by high-temperature calcination in an air or an oxygen atmosphere to compensate for their positive enthalpies of formation. In this work, we demonstrate that changing the reaction atmosphere into a slightly reductive environment using in situ carbonization leads to the creation of a new class of TNO with a formula of TiNbO4. Unlike its predecessors, this new lithium reservoir is a rutile phase, and most strikingly, in situ X-ray diffraction analysis revealed that its lithium intercalation occurs via a purely solid-solution process. Since solid-electrolyte-interface-free, high capacity anode materials with long cyclic life are required to meet the stringent requirements of widespread lithium-ion battery utilization, this finding of a new electrode material with purely single-phase lithium intercalation is of great interest for the development of high-performance anode materials. Distinctive electrochemical behavior that is different from that of crystallographic shear structured TNO is revealed by in-depth electrochemical analyses, which is ascribed to the unique structural and electronic properties of TiNbO4. We believe this work opens a new avenue for the development of feasible oxide-based alternatives to graphite, which can be safer and suitable for high-power performance. © 2022 American Chemical Society. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | New Class of Titanium Niobium Oxide for a Li-Ion Host: TiNbO4 with Purely Single-Phase Lithium Intercalation | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.chemmater.1c03960 | - |
dc.identifier.wosid | 000743209400001 | - |
dc.identifier.scopusid | 2-s2.0-85123365597 | - |
dc.identifier.bibliographicCitation | Chemistry of Materials, v.34, no.2, pp.854 - 863 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordPlus | ANODE MATERIALS | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | FRAMEWORK | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | RUTILE | - |
dc.subject.keywordPlus | TIO2 | - |
dc.citation.endPage | 863 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 854 | - |
dc.citation.title | Chemistry of Materials | - |
dc.citation.volume | 34 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.type.docType | Article | - |
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