High-yield preparation of molybdenum disulfide/polypyrrole hybrid nanomaterial with non-covalent interaction and its supercapacitor application
DC Field | Value | Language |
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dc.contributor.author | Kim, Y.K. | - |
dc.contributor.author | Jeon, H. | - |
dc.contributor.author | Han, D. | - |
dc.contributor.author | Shin, K.-Y. | - |
dc.date.available | 2021-03-15T06:40:14Z | - |
dc.date.issued | 2021-07 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.issn | 1873-4669 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/40676 | - |
dc.description.abstract | Molybdenum disulfide (MoS2) incorporated with a conducting polymer can be a promising nanomaterial for use as low-cost electrodes in supercapacitors. MoS2 nanosheets are generally prepared by the high-pressure hydrothermal method, which has a few drawbacks such as low exfoliation yield, safety issues, and long-time processing. Herein, we report a simple and effective method for the high-yield (~72.5%) preparation of a MoS2/polypyrrole (MPY) hybrid nanomaterial via sonochemical exfoliation of ground bulk MoS2 in a polar aprotic solvent and subsequent chemical oxidative polymerization of pyrrole (PY) onto the MoS2 nanosheets. The strong non-covalent Mo–N bonding lowers the interfacial resistance, and the morphology of polypyrrole (PPY) can be easily controlled by varying the PY content. The MPY hybrid nanomaterial exhibited a maximum surface conductivity of 991 S sq., which is very high compared to that of pristine MoS2 nanosheet (~3.6 × 10–7 S sq.). When used in supercapacitors, the specific capacitance of the hybrid nanomaterial is 312 F g–1. Thus, improved capacitance retention with increase in the scan rate and enhanced diffusion process during electrochemical reactions result in good supercapacitor performance, which is important for the mass production of energy-storage devices. © 2021 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier Ltd | - |
dc.title | High-yield preparation of molybdenum disulfide/polypyrrole hybrid nanomaterial with non-covalent interaction and its supercapacitor application | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jallcom.2021.159263 | - |
dc.identifier.bibliographicCitation | Journal of Alloys and Compounds, v.868 | - |
dc.identifier.wosid | 000636039600126 | - |
dc.identifier.scopusid | 2-s2.0-85101339086 | - |
dc.citation.title | Journal of Alloys and Compounds | - |
dc.citation.volume | 868 | - |
dc.publisher.location | 스위스 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | Chemical oxidative polymerization | - |
dc.subject.keywordAuthor | High-yield production | - |
dc.subject.keywordAuthor | Molybdenum disulfide | - |
dc.subject.keywordAuthor | Polypyrrole | - |
dc.subject.keywordAuthor | Supercapacitor | - |
dc.subject.keywordAuthor | Surface conductivity | - |
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.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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