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Lee, Hyun-Wook
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dc.citation.number 18 -
dc.citation.startPage 2005605 -
dc.citation.title SMALL -
dc.citation.volume 17 -
dc.contributor.author Singh, Aditya Narayan -
dc.contributor.author Kim, Min-Ho -
dc.contributor.author Meena, Abhishek -
dc.contributor.author Wi, Tae-Ung -
dc.contributor.author Lee, Hyun-Wook -
dc.contributor.author Kim, Kwang S. -
dc.date.accessioned 2023-12-21T15:51:12Z -
dc.date.available 2023-12-21T15:51:12Z -
dc.date.created 2021-04-27 -
dc.date.issued 2021-05 -
dc.description.abstract The rational design of bifunctional electrocatalyst through simple synthesis with high activity remains a challenging task. Herein, Na/Al codoped Li-excess Li-Ru-Ni-O layered electrodes are demonstrated with defects/dislocations as an efficient bifunctional electrocatalyst toward lithium-ion battery (LIB) and oxygen evolution reaction (OER). Toward LIB cathode, specific capacity of 173 mAh g(-1) (0.2C-rate), cyclability (>95.0%), high Columbic efficiency (99.2%), and energy efficiency (90.7%) are achieved. The codoped electrocatalyst has exhibited OER activity at a low onset potential (270 mV@10 mA cm(-2)), with a Tafel slope 69.3 mV dec(-1), and long-term stability over 36 h superior to the undoped and many other OER electrocatalysts including the benchmark IrO2. The concurrent doping resides in the crystal lattice (where Na shows the pillaring effect to improve facile Li diffusion), Al improves the stabilization of the layered structure, and defective structures provide abundant active sites to accelerate OER reactions. -
dc.identifier.bibliographicCitation SMALL, v.17, no.18, pp.2005605 -
dc.identifier.doi 10.1002/smll.202005605 -
dc.identifier.issn 1613-6810 -
dc.identifier.scopusid 2-s2.0-85103392513 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/52791 -
dc.identifier.url https://onlinelibrary.wiley.com/doi/10.1002/smll.202005605 -
dc.identifier.wosid 000634638000001 -
dc.language 영어 -
dc.publisher WILEY-V C H VERLAG GMBH -
dc.title Na/Al Codoped Layered Cathode with Defects as Bifunctional Electrocatalyst for High-Performance Li-Ion Battery and Oxygen Evolution Reaction -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter -
dc.relation.journalResearchArea Chemistry; Science & Technology - Other Topics; Materials Science; Physics -
dc.type.docType Article; Early Access -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor electrocatalyst -
dc.subject.keywordAuthor lithium‐ -
dc.subject.keywordAuthor ion battery -
dc.subject.keywordAuthor oxygen evolution reaction -
dc.subject.keywordAuthor phase transition -

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