Carbon-coated tungsten diselenide nanosheets uniformly assembled on porous carbon cloth as flexible binder-free anodes for sodium-ion batteries with improved electrochemical performance
DC Field | Value | Language |
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dc.contributor.author | Kim, Inha | - |
dc.contributor.author | Park, Sung-Woo | - |
dc.contributor.author | Kim, Dong-Wan | - |
dc.date.accessioned | 2021-08-30T20:37:38Z | - |
dc.date.available | 2021-08-30T20:37:38Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-06-25 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/54971 | - |
dc.description.abstract | As large-scale energy storage systems, rechargeable sodium-ion batteries (SIBs) are promising to replace the lithium-ion batteries. Among transition-metal dichalcogenides, which exhibit high theoretical capacities and specific two-dimensional layered structures, tungsten diselenide (WSe2) is an efficient anode material for SIBs owing to the good energetics and large lattice parameter. In this study, well-crystallized WSe2 nanosheets uniformly assembled on a porous carbon cloth (WSe2@PCC) were fabricated by an underwater electrical explosion of a tungsten wire, dip coating, and complete selenization from WO3 to WSe2. To further improve the cycling performance of the WSe2@PCC electrode, a carbon coating was carried out by simply adding sucrose into a WO3 ink before dip coating. The carbon-coated WSe2@PCC (C@WSe2@PCC) electrode exhibited outstanding electrochemical performances as a flexible and binder-free anode for SIBs due to enhanced electrical conductivity and mitigation of volume expansion of WSe2 during repeated sodiation/desodiation. Benefiting from unique structural merits and efficient carbon coating, C@WSe2@PCC can deliver large reversible areal capacity of 1.37 and 1.05 mA h cm(-2) at the 1st and 150th cycles, respectively, with excellent capacity retention and Coulombic efficiency even at a high current density of 0.75 mA cm(-2). (C) 2020 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | ENERGY | - |
dc.subject | NANOPARTICLES | - |
dc.subject | CHALLENGES | - |
dc.title | Carbon-coated tungsten diselenide nanosheets uniformly assembled on porous carbon cloth as flexible binder-free anodes for sodium-ion batteries with improved electrochemical performance | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Dong-Wan | - |
dc.identifier.doi | 10.1016/j.jallcom.2020.154348 | - |
dc.identifier.scopusid | 2-s2.0-85079514046 | - |
dc.identifier.wosid | 000520405900011 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ALLOYS AND COMPOUNDS, v.827 | - |
dc.relation.isPartOf | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.citation.title | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.citation.volume | 827 | - |
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 | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordAuthor | Electrical explosion of wire | - |
dc.subject.keywordAuthor | Dip coating | - |
dc.subject.keywordAuthor | Tungsten diselenide | - |
dc.subject.keywordAuthor | Porous carbon cloth | - |
dc.subject.keywordAuthor | Carbon coating | - |
dc.subject.keywordAuthor | Sodium-ion battery | - |
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