Porous carbon cubes decorated with cobalt nanoparticles for oxygen evolution catalysis in Zn-air batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Gwang-Hee | - |
dc.contributor.author | Yoo, Heewon | - |
dc.contributor.author | Kim, Dong-Wan | - |
dc.date.accessioned | 2022-08-15T01:40:17Z | - |
dc.date.available | 2022-08-15T01:40:17Z | - |
dc.date.created | 2022-08-12 | - |
dc.date.issued | 2022-04 | - |
dc.identifier.issn | 0363-907X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/143214 | - |
dc.description.abstract | For commercialization of zinc-air batteries, it is important to replace expensive noble metal catalysts with inexpensive carbonaceous materials. Herein, an efficient oxygen evolution reaction (OER) catalyst composed of a unique porous tunnel carbon cube and cobalt nanoparticles (Co@NPCC) was fabricated to facilitate oxygen diffusion and create electron conduction networks. As an OER catalyst for zinc-air batteries (ZABs), the resulting Co@NPCC demonstrate enhanced OER activity, similar to that of the benchmark RuO2. In OER performance, Co@NPCC exhibits the excellent mass activity of 49.9 mA mg(-1) at overpotential (eta) of 0.47 V and the high current density of 91.5 mA cm(-2) at 1.75 V (vs RHE), compared to commercial RuO2 catalysts. The use of Co@NPCC as the OER catalyst for ZAB maintains stable charge overpotential with as little as 0.05 V variation during 250 cycles, which extends the stable discharge-charge cycle performance compared to RuO2. This work highlights a facile approach to fabricate OER catalysts without noble metals for enabling stable charge state and long life ZABs. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.subject | N-DOPED CARBON | - |
dc.subject | ELECTROCATALYST | - |
dc.subject | REDUCTION | - |
dc.subject | OXIDATION | - |
dc.title | Porous carbon cubes decorated with cobalt nanoparticles for oxygen evolution catalysis in Zn-air batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Dong-Wan | - |
dc.identifier.doi | 10.1002/er.7615 | - |
dc.identifier.scopusid | 2-s2.0-85122002334 | - |
dc.identifier.wosid | 000734785100001 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF ENERGY RESEARCH, v.46, no.5, pp.6755 - 6765 | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF ENERGY RESEARCH | - |
dc.citation.title | INTERNATIONAL JOURNAL OF ENERGY RESEARCH | - |
dc.citation.volume | 46 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 6755 | - |
dc.citation.endPage | 6765 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Nuclear Science & Technology | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Nuclear Science & Technology | - |
dc.subject.keywordPlus | N-DOPED CARBON | - |
dc.subject.keywordPlus | ELECTROCATALYST | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordAuthor | cobalt nanoparticle | - |
dc.subject.keywordAuthor | oxygen evolution reaction | - |
dc.subject.keywordAuthor | porous carbon cube | - |
dc.subject.keywordAuthor | zinc-air battery | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.