Mesoporous reduced graphene oxide/WSe2 composite particles for efficient sodium-ion batteries and hydrogen evolution reactions
DC Field | Value | Language |
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dc.contributor.author | Cho, Jung Sang | - |
dc.contributor.author | Park, Seung-Keun | - |
dc.contributor.author | Jeon, Kyung Min | - |
dc.contributor.author | Piao, Yuanzhe | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-09-02T02:44:02Z | - |
dc.date.available | 2021-09-02T02:44:02Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2018-11-30 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/71488 | - |
dc.description.abstract | Mesoporous WSe2-reduced graphene oxide (WSe2-rGO) composite particles were prepared by spray pyrolysis and subsequent selenization. The WSe2-rGO composite particles had both well-dispersed rGO nanosheets and well-faceted WSe2 nanocrystals with plenty of folded edges. As a comparison sample, hierarchical structured WSe2 particles were produced by selenization of the bare WO3 particles obtained by spray pyrolysis. The WSe2-rGO composite particles showed superior electrochemical properties for sodium-ion batteries (SIBs) and electrocatalytic efficiencies for hydrogen evolution reactions (HERs) compared to those of the bare WSe2 particles. The discharge capacities of the WSe2-rGO composite particles and bare WSe2 particles for the 100th cycle at a current density of 0.5 A g(-1) for sodium-ion storage were 238 and 36 mA h g(-1), respectively; their corresponding capacity retentions measured from the third cycle were 80% and 13%. The WSe2-rGO composite particles showed much lower onset potential and larger current density (36.5 mA cm(-2) at eta = 300 mV) than those of the bare WSe2 particles (0.61 mA cm(-2) at = 300 mV). The Tafel slopes for the WSe2-rGO composite and bare WSe2 particles were approximately 60 and 115 mV dec(-1), respectively. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | PERFORMANCE ANODE MATERIALS | - |
dc.subject | TRANSITION-METAL DICHALCOGENIDES | - |
dc.subject | MOS2 ULTRATHIN NANOSHEETS | - |
dc.subject | CORE-SHELL COMPOSITES | - |
dc.subject | ACTIVE EDGE SITES | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | CATALYTIC-ACTIVITY | - |
dc.subject | PHASE-TRANSITION | - |
dc.subject | ELECTROCATALYSTS | - |
dc.subject | WSE2 | - |
dc.title | Mesoporous reduced graphene oxide/WSe2 composite particles for efficient sodium-ion batteries and hydrogen evolution reactions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.apsusc.2018.07.200 | - |
dc.identifier.scopusid | 2-s2.0-85051034270 | - |
dc.identifier.wosid | 000444600300040 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.459, pp.309 - 317 | - |
dc.relation.isPartOf | APPLIED SURFACE SCIENCE | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 459 | - |
dc.citation.startPage | 309 | - |
dc.citation.endPage | 317 | - |
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 | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | PERFORMANCE ANODE MATERIALS | - |
dc.subject.keywordPlus | TRANSITION-METAL DICHALCOGENIDES | - |
dc.subject.keywordPlus | MOS2 ULTRATHIN NANOSHEETS | - |
dc.subject.keywordPlus | CORE-SHELL COMPOSITES | - |
dc.subject.keywordPlus | ACTIVE EDGE SITES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | CATALYTIC-ACTIVITY | - |
dc.subject.keywordPlus | PHASE-TRANSITION | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | WSE2 | - |
dc.subject.keywordAuthor | Tungsten selenide | - |
dc.subject.keywordAuthor | Sodium ion batteries | - |
dc.subject.keywordAuthor | Hydrogen evolution | - |
dc.subject.keywordAuthor | Graphene | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
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