Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 4060 | - |
dc.citation.title | NATURE COMMUNICATIONS | - |
dc.citation.volume | 10 | - |
dc.contributor.author | Li, Feng | - |
dc.contributor.author | Han, Gao-Feng | - |
dc.contributor.author | Noh, Hyuk-Jun | - |
dc.contributor.author | Jeon, Jong-Pil | - |
dc.contributor.author | Ahmad, Ishfaq | - |
dc.contributor.author | Chen, Shanshan | - |
dc.contributor.author | Yang, Changduk | - |
dc.contributor.author | Bu, Yunfei | - |
dc.contributor.author | Fu, Zhengping | - |
dc.contributor.author | Lu, Yalin | - |
dc.contributor.author | Baek, Jong-Beom | - |
dc.date.accessioned | 2023-12-21T18:42:14Z | - |
dc.date.available | 2023-12-21T18:42:14Z | - |
dc.date.created | 2019-10-01 | - |
dc.date.issued | 2019-09 | - |
dc.description.abstract | Hydrogen adsorption/desorption behavior plays a key role in hydrogen evolution reaction (HER) catalysis. The HER reaction rate is a trade-off between hydrogen adsorption and desorption on the catalyst surface. Herein, we report the rational balancing of hydrogen adsorption/desorption by orbital modulation using introduced environmental electronegative carbon/nitrogen (C/N) atoms. Theoretical calculations reveal that the empty d orbitals of iridium (Ir) sites can be reduced by interactions between the environmental electronegative C/N and Ir atoms. This balances the hydrogen adsorption/ desorption around the Ir sites, accelerating the related HER process. Remarkably, by anchoring a small amount of Ir nanoparticles (7.16 wt%) in nitrogenated carbon matrixes, the resulting catalyst exhibits significantly enhanced HER performance. This includs the smallest reported overpotential at 10 mA cm(-2) (4.5 mV), the highest mass activity at 10 mV (1.12 A mg(Ir)(-1)) and turnover frequency at 25 mV (4.21 H2 s(-1)) by far, outperforming Ir nanoparticles and commercial Pt/C. | - |
dc.identifier.bibliographicCitation | NATURE COMMUNICATIONS, v.10, pp.4060 | - |
dc.identifier.doi | 10.1038/s41467-019-12012-z | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.scopusid | 2-s2.0-85071741837 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30370 | - |
dc.identifier.url | https://www.nature.com/articles/s41467-019-12012-z | - |
dc.identifier.wosid | 000484599900010 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Balancing hydrogen adsorption/desorption by orbital modulation for efficient hydrogen evolution catalysis | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.