Anion extraction-induced polymorph control of transition metal dichalcogenides
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nam, Dae-Hyun | - |
dc.contributor.author | Kim, Ji-Yong | - |
dc.contributor.author | Kang, Sungwoo | - |
dc.contributor.author | Joo, Wonhyo | - |
dc.contributor.author | Lee, Seung Yong | - |
dc.contributor.author | Seo, Hongmin | - |
dc.contributor.author | Kim, Hyoung Gyun | - |
dc.contributor.author | Ahn, In-Kyoung | - |
dc.contributor.author | Lee, Gi-Baek | - |
dc.contributor.author | Choi, Minjeong | - |
dc.contributor.author | Cho, Eunsoo | - |
dc.contributor.author | Kim, Miyoung | - |
dc.contributor.author | Nam, Ki Tae | - |
dc.contributor.author | Han, Seungwu | - |
dc.contributor.author | Joo, Young-Chang | - |
dc.date.accessioned | 2021-08-02T10:27:36Z | - |
dc.date.available | 2021-08-02T10:27:36Z | - |
dc.date.created | 2021-05-14 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/11558 | - |
dc.description.abstract | Controlled phase conversion in polymorphic transition metal dichalcogenides (TMDs) provides a new synthetic route for realizing tunable nanomaterials. Most conversion methods from the stable 2H to metastable 1T phase are limited to kinetically slow cation insertion into atomically thin layered TMDs for charge transfer from intercalated ions. Here, we report that anion extraction by the selective reaction between carbon monoxide (CO) and chalcogen atoms enables predictive and scalable TMD polymorph control. Sulfur vacancy, induced by anion extraction, is a key factor in molybdenum disulfide (MoS2) polymorph conversion without cation insertion. Thermodynamic MoS2-CO-CO2 ternary phase diagram offers a processing window for efficient sulfur vacancy formation with precisely controlled MoS2 structures from single layer to multilayer. To utilize our efficient phase conversion, we synthesize vertically stacked 1T-MoS2 layers in carbon nanofibers, which exhibit highly efficient hydrogen evolution reaction catalytic activity. Anion extraction induces the polymorph conversion of tungsten disulfide (WS2) from 2H to 1T. This reveals that our method can be utilized as a general polymorph control platform. The versatility of the gas-solid reaction-based polymorphic control will enable the engineering of metastable phases in 2D TMDs for further applications. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Anion extraction-induced polymorph control of transition metal dichalcogenides | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Seung Yong | - |
dc.identifier.doi | 10.1021/acs.nanolett.9b03240 | - |
dc.identifier.scopusid | 2-s2.0-85074732302 | - |
dc.identifier.wosid | 000502687500037 | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.19, no.12, pp.8644 - 8652 | - |
dc.relation.isPartOf | NANO LETTERS | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 19 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 8644 | - |
dc.citation.endPage | 8652 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION REACTION | - |
dc.subject.keywordPlus | MOLYBDENUM SULFIDE NANOPARTICLES | - |
dc.subject.keywordPlus | MOS2 ULTRATHIN NANOSHEETS | - |
dc.subject.keywordPlus | ACTIVE EDGE SITES | - |
dc.subject.keywordPlus | PHASE-TRANSITION | - |
dc.subject.keywordPlus | CATALYTIC-ACTIVITY | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | 1T | - |
dc.subject.keywordPlus | HETEROSTRUCTURES | - |
dc.subject.keywordPlus | SUBSTRATE | - |
dc.subject.keywordAuthor | transition metal dichalcogenides | - |
dc.subject.keywordAuthor | polymorph control | - |
dc.subject.keywordAuthor | anion extraction | - |
dc.subject.keywordAuthor | predictive synthesis | - |
dc.subject.keywordAuthor | hydrogen evolution reaction | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.nanolett.9b03240 | - |
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