B-site doping effects of NdBa0.75Ca0.25Co2O5+δ double perovskite catalysts for oxygen evolution and reduction reactions
DC Field | Value | Language |
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dc.contributor.author | Kim, Nam-In | - |
dc.contributor.author | Cho, Sung-Hwa | - |
dc.contributor.author | Park, Se Hwan | - |
dc.contributor.author | Lee, Young Joo | - |
dc.contributor.author | Afzal, Rana Arslan | - |
dc.contributor.author | Yoo, Jeseung | - |
dc.contributor.author | Seo, Young-Soo | - |
dc.contributor.author | Lee, Yun Jung | - |
dc.contributor.author | Park, Jun-Young | - |
dc.date.accessioned | 2021-07-30T05:24:34Z | - |
dc.date.available | 2021-07-30T05:24:34Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2018-09 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/4678 | - |
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+δ with the aim of exploiting its high catalytic activity for the oxygen electrode. Further, the electrochemical performances of the NdBa0.75Ca0.25Co2O5+δ 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+δ (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. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | B-site doping effects of NdBa0.75Ca0.25Co2O5+δ double perovskite catalysts for oxygen evolution and reduction reactions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Yun Jung | - |
dc.identifier.doi | 10.1039/c8ta06236f | - |
dc.identifier.scopusid | 2-s2.0-85053666489 | - |
dc.identifier.wosid | 000448147200059 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.6, no.36, pp.17807 - 17818 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 6 | - |
dc.citation.number | 36 | - |
dc.citation.startPage | 17807 | - |
dc.citation.endPage | 17818 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | METAL-AIR BATTERIES | - |
dc.subject.keywordPlus | BIFUNCTIONAL HYBRID CATALYSTS | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | FUEL-CELLS | - |
dc.subject.keywordPlus | WATER OXIDATION | - |
dc.subject.keywordPlus | SYNERGISTIC CATALYST | - |
dc.subject.keywordPlus | RECENT PROGRESS | - |
dc.subject.keywordPlus | ALKALINE MEDIA | - |
dc.subject.keywordPlus | DOPED GRAPHENE | - |
dc.subject.keywordPlus | IN-SITU | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2018/TA/C8TA06236F | - |
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