DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jooyoung | - |
dc.contributor.author | JUNG, HYEONJUNG | - |
dc.contributor.author | Park, Yoo Sei | - |
dc.contributor.author | Woo, Seongwon | - |
dc.contributor.author | Yang, Juchan | - |
dc.contributor.author | Jang, Myeong Je | - |
dc.contributor.author | Jeong, Jaehoon | - |
dc.contributor.author | Kwon, Nayoung | - |
dc.contributor.author | Lim, Byungkwon | - |
dc.contributor.author | Han, Jeong Woo | - |
dc.contributor.author | Choi, Sung Mook | - |
dc.date.accessioned | 2021-11-20T13:50:03Z | - |
dc.date.available | 2021-11-20T13:50:03Z | - |
dc.date.created | 2021-11-19 | - |
dc.date.issued | 2021-07 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/107547 | - |
dc.description.abstract | Developing high-efficiency and low-cost oxygen-evolving electrodes in anion exchange membrane (AEM) water electrolysis technology is one of the major challenges. Herein, it is demonstrated that the surface corrosion of a conventional Ni foam electrode in the presence of Fe3+ and V3+ cations can transform it into an electrode with a high catalytic performance for oxygen evolution reaction (OER). The corroded electrode consists of a ternary NiFeV layered double hydroxide (LDH) nanosheet array supported on the Ni foam surface. This NiFeV LDH electrode achieves an OER current density of 100 mA cm(-2) at an overpotential of 272 mV in 1 m KOH, outperforming the IrO2 catalyst by 180 mV. Density functional theory calculations reveal that the unique structure and the presence of vanadium in NiFeV LDH play a key role in achieving improved OER activity. When coupled with a commercial Pt/C cathode catalyst, the resulting AEM water electrolyzer achieves a cell current density as high as 2.1 A cm(-2) at a voltage of only 1.8 V-cell in 1 m KOH, which is similar to the performance of the proton exchange membrane water electrolyzer obtained from the IrO2 and Pt/C catalysts pair. | - |
dc.language | English | - |
dc.publisher | Wiley - V C H Verlag GmbbH & Co. | - |
dc.relation.isPartOf | Small | - |
dc.title | High‐Efficiency Anion‐Exchange Membrane Water Electrolyzer Enabled by Ternary Layered Double Hydroxide Anode | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/smll.202100639 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Small, v.17, no.28, pp.2100639 | - |
dc.identifier.wosid | 000657391500001 | - |
dc.citation.number | 28 | - |
dc.citation.startPage | 2100639 | - |
dc.citation.title | Small | - |
dc.citation.volume | 17 | - |
dc.contributor.affiliatedAuthor | JUNG, HYEONJUNG | - |
dc.contributor.affiliatedAuthor | Han, Jeong Woo | - |
dc.identifier.scopusid | 2-s2.0-85107046750 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | OXYGEN EVOLUTION | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NICKEL | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | IRON | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | PARAMETERS | - |
dc.subject.keywordAuthor | anion exchange membrane water electrolyzers | - |
dc.subject.keywordAuthor | electrocatalysts | - |
dc.subject.keywordAuthor | oxygen evolution reaction | - |
dc.subject.keywordAuthor | transition metals | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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