Two-dimensional MoS2/Fe-phthalocyanine hybrid nanostructures as excellent electrocatalysts for hydrogen evolution and oxygen reduction reactions
DC Field | Value | Language |
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dc.contributor.author | Kwon, Ik Seon | - |
dc.contributor.author | Kwak, In Hye | - |
dc.contributor.author | Kim, Ju Yeon | - |
dc.contributor.author | Abbas, Hafiz Ghulam | - |
dc.contributor.author | Debela, Tekalign Terfa | - |
dc.contributor.author | Seo, Jaemin | - |
dc.contributor.author | Cho, Min Kyung | - |
dc.contributor.author | Ahn, Jae-Pyoung | - |
dc.contributor.author | Park, Jeunghee | - |
dc.contributor.author | Kang, Hong Seok | - |
dc.date.accessioned | 2021-09-01T08:37:03Z | - |
dc.date.available | 2021-09-01T08:37:03Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-08-14 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/63527 | - |
dc.description.abstract | Two-dimensional (2D) MoS2 nanostructures have been extensively investigated in recent years because of their fascinating electrocatalytic properties. Herein, we report 2D hybrid nanostructures consisting of 1T ' phase MoS2 and Fe-phthalocyanine (FePc) molecules that exhibit excellent catalytic activity toward both the hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR). X-ray absorption spectra revealed an increased Fe-N distance (2.04 angstrom) in the hybrid complex relative to the isolated FePc. Spin-polarized density functional theory calculations predicted that the Fe center moves toward the MoS2 layer and induces a non-planar structure with an increased Fe-N distance of 2.05 angstrom, which supports the experimental results. The experiments and calculations consistently show a significant charge transfer from FePc to stabilize the hybrid complex. The excellent HER catalytic performance of FePc-MoS2 is characterized by a low Tafel slope of 32 mV dec(-1) at a current density of 10 mA cm(-2) and an overpotential of 0.123 V. The ORR catalytic activity is superior to that of the commercial Pt/C catalyst in pH 13 electrolyte, with a more positive half-wave potential (0.89 vs. 0.84 V), a smaller Tafel slope (35 vs. 87 mV center dot dec(-1)), and a much better durability (9.3% vs. 40% degradation after 20 h). Such remarkable catalytic activity is ascribed to the HER-active 1T ' phase MoS2 and the ORR-active nonplanar Fe-N-4 site of FePc. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | NITROGEN-DOPED GRAPHENE | - |
dc.subject | ACTIVE EDGE SITES | - |
dc.subject | IRON PHTHALOCYANINE | - |
dc.subject | MOS2 NANOSHEETS | - |
dc.subject | PHASE-TRANSITION | - |
dc.subject | CATALYSTS | - |
dc.subject | CARBON | - |
dc.subject | IDENTIFICATION | - |
dc.subject | STABILITY | - |
dc.subject | 1T-MOS2 | - |
dc.title | Two-dimensional MoS2/Fe-phthalocyanine hybrid nanostructures as excellent electrocatalysts for hydrogen evolution and oxygen reduction reactions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Jeunghee | - |
dc.identifier.doi | 10.1039/c9nr04156g | - |
dc.identifier.scopusid | 2-s2.0-85070852373 | - |
dc.identifier.wosid | 000484234700022 | - |
dc.identifier.bibliographicCitation | NANOSCALE, v.11, no.30, pp.14266 - 14275 | - |
dc.relation.isPartOf | NANOSCALE | - |
dc.citation.title | NANOSCALE | - |
dc.citation.volume | 11 | - |
dc.citation.number | 30 | - |
dc.citation.startPage | 14266 | - |
dc.citation.endPage | 14275 | - |
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 | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | NITROGEN-DOPED GRAPHENE | - |
dc.subject.keywordPlus | ACTIVE EDGE SITES | - |
dc.subject.keywordPlus | IRON PHTHALOCYANINE | - |
dc.subject.keywordPlus | MOS2 NANOSHEETS | - |
dc.subject.keywordPlus | PHASE-TRANSITION | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | IDENTIFICATION | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | 1T-MOS2 | - |
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