Full metadata record
DC Field | Value | Language |
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dc.citation.number | 9 | - |
dc.citation.startPage | 2104938 | - |
dc.citation.title | ADVANCED SCIENCE | - |
dc.citation.volume | 9 | - |
dc.contributor.author | Nam, Yungi | - |
dc.contributor.author | Kim, Daehan | - |
dc.contributor.author | Chu, Jinwoo | - |
dc.contributor.author | Park, Na-Yeon | - |
dc.contributor.author | Kim, Tae Gun | - |
dc.contributor.author | Kim, Kyung Joong | - |
dc.contributor.author | Kim, Soo-Hyun | - |
dc.contributor.author | Shin, Byungha | - |
dc.date.accessioned | 2023-12-21T14:21:21Z | - |
dc.date.available | 2023-12-21T14:21:21Z | - |
dc.date.created | 2022-12-20 | - |
dc.date.issued | 2022-03 | - |
dc.description.abstract | Ir is one of the most efficient oxygen evolution reaction (OER) catalysts; however, it is also one of the rarest and most expensive elements. Therefore, it is highly desirable to develop Ir catalysts with nanostructures that reduce Ir consumption by maximizing the surface-to-volume ratio without limiting the mass transport of reactants and products of reactions. Ir OER catalysts on a template that consisted of porous nanotubes (PNTs) based on Ni are fabricated. The Ir/Ni PNTs offer multiple benefits, including high catalytic performance (potential of 1.500 V vs reversible hydrogen electrode (RHE) at an operating current density of 10 mA cm(-2) and Tafel slope of 44.34 mV decade(-1)), minimal use of Ir (mass activity of 3273 A g(-1) at 1.53 V vs RHE), and facile mass transport through the NT-sidewall pores (stable operation for more than 10 h). The Ir/Ni PNTs are also applied to a tandem device, consisting of a Cu(In,Ga)Se-2-based photocathode and halide perovskite photovoltaic cell, for unassisted water splitting. A solar-tohydrogen conversion efficiency that exceeded 10% is also demonstrated, which is nearly 1% point greater than when a planar Ir film is used as the anode instead of Ir/Ni PNTs. | - |
dc.identifier.bibliographicCitation | ADVANCED SCIENCE, v.9, no.9, pp.2104938 | - |
dc.identifier.doi | 10.1002/advs.202104938 | - |
dc.identifier.issn | 2198-3844 | - |
dc.identifier.scopusid | 2-s2.0-85123484537 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/64050 | - |
dc.identifier.wosid | 000745875500001 | - |
dc.language | 영어 | - |
dc.publisher | Wiley-VCH Verlag | - |
dc.title | Highly Efficient and Stable Iridium Oxygen Evolution Reaction Electrocatalysts Based on Porous Nickel Nanotube Template Enabling Tandem Devices with Solar-to-Hydrogen Conversion Efficiency Exceeding 10% | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | ARTICLE | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | facile mass transportation | - |
dc.subject.keywordAuthor | Ir based OER catalyst | - |
dc.subject.keywordAuthor | Ir-Ni synergy | - |
dc.subject.keywordAuthor | STH over 10% | - |
dc.subject.keywordAuthor | unassisted water splitting | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | ARRAYS | - |
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