Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이윤정 | - |
dc.date.accessioned | 2019-12-08T20:23:59Z | - |
dc.date.available | 2019-12-08T20:23:59Z | - |
dc.date.issued | 2018-09 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v. 6, no. 36, page. 17807-17818 | en_US |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.issn | 2050-7496 | - |
dc.identifier.uri | https://pubs.rsc.org/en/content/articlelanding/2018/TA/C8TA06236F#!divAbstract | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/119909 | - |
dc.description.abstract | As bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), we introduce an economical, particularly active, stable, and completely noble-metal-free catalyst based on CaO-doped NdBaCo2O5+delta with the aim of exploiting its high catalytic activity for the oxygen electrode. Further, the electrochemical performances of the NdBa0.75Ca0.25Co2O5+delta catalyst are improved by doping transition-metal oxides (Fe2+, Ni2+, Cu2+, and Mn2+) into the B-sites of double perovskite oxides, facilitating the movement of electrons and oxygen-ions through oxygen vacancies. Among these, NdBa0.75Ca0.25Co1.5Fe0.5O5+delta (NBCCFe) shows the highest electrocatalytic oxygen electrode activity for the OER and ORR, and NBCCFe thus is hybridized with nitrogen-reduced graphene oxide (N-rGO) to further improve its catalytic activity with excellent durability. Hybridization of NBCCFe with N-rGO further boosts bifunctional oxygen electrode activity (0.761 V) with better durability, which surpasses those of Pt/C (0.815 V) and Ir/C (0.768 V) catalysts. A rechargeable lithium-air battery assembled with the NBCCFe/N-rGO catalyst exhibits remarkably improved discharge capacity, reduced charge overpotential and an extended cycle life, corroborating the excellent bifunctional catalytic activity of NBCCFe/N-rGO. The NBCCFe/N-rGO catalyst also displays the most improved polarization during both discharge and charge, further confirming the highest bifunctional catalytic activity of NBCCFe/N-rGO. | en_US |
dc.description.sponsorship | This research was supported by the Mid-career Researcher Program (NRF-2017R1A2A2A05069812) and Climate Change Technology Research Program (NRF-2015M1A2A2057042) through the National Research Foundation of Korea, and by the International Collaborative Energy Technology R&D program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Korea (No. 20158520030830). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | ROYAL SOC CHEMISTRY | en_US |
dc.subject | METAL-AIR BATTERIES | en_US |
dc.subject | BIFUNCTIONAL HYBRID CATALYSTS | en_US |
dc.subject | GRAPHENE OXIDE | en_US |
dc.subject | FUEL-CELLS | en_US |
dc.subject | WATER OXIDATION | en_US |
dc.subject | SYNERGISTIC CATALYST | en_US |
dc.subject | RECENT PROGRESS | en_US |
dc.subject | ALKALINE MEDIA | en_US |
dc.subject | DOPED GRAPHENE | en_US |
dc.subject | IN-SITU | en_US |
dc.title | B-site doping effects of NdBa0.75Ca0.25Co2O5+delta double perovskite catalysts for oxygen evolution and reduction reactions | en_US |
dc.type | Article | en_US |
dc.relation.no | 36 | - |
dc.relation.volume | 6 | - |
dc.identifier.doi | 10.1039/c8ta06236f | - |
dc.relation.page | 17807-17818 | - |
dc.relation.journal | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.contributor.googleauthor | Kim, Nam-In | - |
dc.contributor.googleauthor | Cho, Sung-Hwa | - |
dc.contributor.googleauthor | Park, Se Hwan | - |
dc.contributor.googleauthor | Lee, Young Joo | - |
dc.contributor.googleauthor | Afzal, Rana Arslan | - |
dc.contributor.googleauthor | Yoo, Jeseung | - |
dc.contributor.googleauthor | Seo, Young-Soo | - |
dc.contributor.googleauthor | Lee, Yun Jung | - |
dc.contributor.googleauthor | Park, Jun-Young | - |
dc.relation.code | 2018000119 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | yjlee94 | - |
dc.identifier.researcherID | M-1198-2017 | - |
dc.identifier.orcid | http://orcid.org/0000-0003-3091-1174 | - |
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