Boosting the OER activity of amorphous IrOx in acidic medium by tuning its electron structure using lanthanum salt nanosheets
DC Field | Value | Language |
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dc.contributor.author | Wang, Xuefeng | - |
dc.contributor.author | Jang, Haeseong | - |
dc.contributor.author | Li, Zijian | - |
dc.contributor.author | Li, Haisen | - |
dc.contributor.author | Li, Guangkai | - |
dc.contributor.author | Kim, Min Gyu | - |
dc.contributor.author | Ji, Xuqiang | - |
dc.contributor.author | Qin, Qing | - |
dc.contributor.author | Liu, Xien | - |
dc.date.accessioned | 2024-01-08T06:32:12Z | - |
dc.date.available | 2024-01-08T06:32:12Z | - |
dc.date.issued | 2023-01 | - |
dc.identifier.issn | 1144-0546 | - |
dc.identifier.issn | 1369-9261 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/69339 | - |
dc.description.abstract | Promoting the activity of Ir-based nanomaterials for oxygen evolution reaction (OER) in acid media without losing their durability is crucial for reducing overpotentials in energy conversion, such as electrochemical water splitting. Here, a nanocomposite composed of a-IrOx and lanthanum salt (LaCO3OH) was constructed to further improve its OER activity by tuning the electronic structure of a-IrOx, because a-IrOx is a well-known critical material as the active layer of Ir-based anodic catalysts. The interaction between Ir and La via O atoms as a bridge in the catalyst IrOx/LaCO3OH, verified by X-ray absorption near edge structure spectroscopy, tunes the electronic structure of a-IrOx and thus obviously enhances its activity for the OER in acid media, compared with commercially available IrO2 as well as most of the reported Ir-based OER electrocatalysts. The overpotential of IrOx/LaCO3OH at a current density of 10 mA cm(-2) is 255 mV with a Tafel slope of 55 mV dec(-1). This work reveals that the strong electronic interaction between Ir- and La-based materials can efficiently improve activity and reduce energy consumption, as well as enlarging the family of acidic OER electrocatalysts. | - |
dc.format.extent | 7 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Boosting the OER activity of amorphous IrOx in acidic medium by tuning its electron structure using lanthanum salt nanosheets | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/d2nj05464g | - |
dc.identifier.bibliographicCitation | NEW JOURNAL OF CHEMISTRY, v.47, no.5, pp 2619 - 2625 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000910125200001 | - |
dc.identifier.scopusid | 2-s2.0-85146301299 | - |
dc.citation.endPage | 2625 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 2619 | - |
dc.citation.title | NEW JOURNAL OF CHEMISTRY | - |
dc.citation.volume | 47 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordPlus | EFFICIENT OXYGEN EVOLUTION | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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