Enhanced Oxygen Evolution Electrocatalysis in Strained A-Site Cation Deficient LaNiO3 Perovskite Thin Films
DC Field | Value | Language |
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dc.contributor.author | Choi, M.-J. | - |
dc.contributor.author | Kim, T.L. | - |
dc.contributor.author | Kim, J.K. | - |
dc.contributor.author | Lee, T.H. | - |
dc.contributor.author | Lee, S.A. | - |
dc.contributor.author | Kim, C. | - |
dc.contributor.author | Hong, K. | - |
dc.contributor.author | Bark, C.W. | - |
dc.contributor.author | Ko, K.-T. | - |
dc.contributor.author | Jang, H.W. | - |
dc.date.available | 2020-12-10T00:40:08Z | - |
dc.date.created | 2020-11-23 | - |
dc.date.issued | 2020-11 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79226 | - |
dc.description.abstract | As the BO6 octahedral structure in perovskite oxide is strongly linked with electronic behavior, it is actively studied for various fields such as metal-insulator transition, superconductivity, and so on. However, the research about the relationship between water-splitting activity and BO6 structure is largely lacking. Here, we report the oxygen evolution reaction (OER) of LaNiO3 (LNO) by changing the NiO6 structure using compositional change and strain. The 5 atom % La deficiency in LNO resulted in an increase of the Ni-O-Ni bond angle and an expansion of bandwidth, enhancing the charge transfer ability. In-plane compressive strain derives the higher dz2 orbital occupancy, leading to suitable metal-oxygen bond strength for OER. Because of the synergistic effect of A-site deficiency and compressive strain, the overpotential (η) of compressively strained L0.95NO film is reduced to 130 mV at j = 30 μA/cm2 compared with nonstrained LNO (η = 280 mV), indicating a significant enhancement in OER. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | NANO LETTERS | - |
dc.title | Enhanced Oxygen Evolution Electrocatalysis in Strained A-Site Cation Deficient LaNiO3 Perovskite Thin Films | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000592495700032 | - |
dc.identifier.doi | 10.1021/acs.nanolett.0c02949 | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.20, no.11, pp.8040 - 8045 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85096079822 | - |
dc.citation.endPage | 8045 | - |
dc.citation.startPage | 8040 | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 20 | - |
dc.citation.number | 11 | - |
dc.contributor.affiliatedAuthor | Bark, C.W. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | A-site deficiency | - |
dc.subject.keywordAuthor | d-orbital | - |
dc.subject.keywordAuthor | Oxygen evolution catalyst | - |
dc.subject.keywordAuthor | Strain | - |
dc.subject.keywordAuthor | Transition metal oxide | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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