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DC Field | Value | Language |
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dc.citation.endPage | 405 | - |
dc.citation.startPage | 397 | - |
dc.citation.title | ENERGY STORAGE MATERIALS | - |
dc.citation.volume | 55 | - |
dc.contributor.author | Ryu, Jaechan | - |
dc.contributor.author | Park, Joohyuk | - |
dc.contributor.author | Park, Jihan | - |
dc.contributor.author | Kim, Min Gyu | - |
dc.contributor.author | Park, Minjoon | - |
dc.date.accessioned | 2023-12-21T13:08:42Z | - |
dc.date.available | 2023-12-21T13:08:42Z | - |
dc.date.created | 2023-02-03 | - |
dc.date.issued | 2023-01 | - |
dc.description.abstract | Metal-nitrogen-carbon (M-N-C) electrocatalysts have emerged as promising oxygen electrocatalysts with the excessive catalytically active M-Nx sites. However, M-Nx sites are not easy to be preserved at elevated temperature of pyrolysis step. Here, we show that a supercritical fluid with a fast reaction kinetics allows us to synthesize a high-purity carbon nitride nanotube filled with the iron and copper phthalocyanine nanorods as a bifunctional oxygen electrocatalyst. The well-preserved Fe-N4 and Cu-N4 sites inside of carbon nitride nanotubes are clearly observed by the systematic analysis. In addition, we investigate the synergistic effect of atomically dispersed Fe-N4 and Cu-N4 dual-atom catalysts inside the carbon nitride nanotube. The prepared sample exhibits the half-wave potential of 0.94 V for oxygen reduction reaction and the potential of 1.65 V at 10 mA cm-2 for oxygen evolution reaction. Further, we fabricate rechargeable zinc-air batteries with the dual-atomic catalyst, which show better bi-functional activities than the mixture of Pt/C and IrO2 under high depth of discharge (DOD) of -32.6% (12 h per cycle) for the zinc-air batteries. Finally, the in-situ X-ray absorption spectroscopy analysis during ORR and OER reactions revealed the catalytic origin of the FCN4-CNNT, providing a new insight into the development of efficient oxygen electrocatalysts. | - |
dc.identifier.bibliographicCitation | ENERGY STORAGE MATERIALS, v.55, pp.397 - 405 | - |
dc.identifier.doi | 10.1016/j.ensm.2022.12.007 | - |
dc.identifier.issn | 2405-8297 | - |
dc.identifier.scopusid | 2-s2.0-85143700447 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/62357 | - |
dc.identifier.wosid | 000903743800002 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | Molecular engineering of atomically dispersed Fe-N4 and Cu-N4 dual-sites in carbon nitride nanotubes for rechargeable zinc-air batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Metal phthalocyanine | - |
dc.subject.keywordAuthor | Carbon nitride | - |
dc.subject.keywordAuthor | Dual atom catalyst | - |
dc.subject.keywordAuthor | Oxygen catalysts | - |
dc.subject.keywordAuthor | Zinc -air batteries | - |
dc.subject.keywordPlus | EFFICIENT OXYGEN REDUCTION | - |
dc.subject.keywordPlus | HIGHLY EFFICIENT | - |
dc.subject.keywordPlus | ACTIVE-SITES | - |
dc.subject.keywordPlus | ELECTROCATALYST | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | BEHAVIOR | - |
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