Ligand Modulation of Active Sites to Promote Electrocatalytic Oxygen Evolution

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 18 vom: 27. Mai, Seite e2200270
1. Verfasser:	Huang, Wenzhong (VerfasserIn)
Weitere Verfasser:	Li, Jiantao, Liao, Xiaobin, Lu, Ruihu, Ling, Chaohong, Liu, Xiong, Meng, Jiashen, Qu, Longbing, Lin, Mengting, Hong, Xufeng, Zhou, Xunbiao, Liu, Shanlin, Zhao, Yan, Zhou, Liang, Mai, Liqiang
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2022
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article electrocatalysts electronic structure ligand modulation orbital overlap oxygen evolution reaction

Beschreibung
Zusammenfassung:	© 2022 Wiley-VCH GmbH. Rationally designed catalysts hold the key to address the sluggish kinetics of oxygen evolution reaction (OER). However, engineering the active sites of such catalysts still faces grand challenges. This study proposes a feasible ligand modulation strategy to boost the OER catalytic activity of cobalt-iron oxyhydroxide ((Fe,Co)OOH). The 2-methylimidazole (MI) ligand coordination on (Fe,Co)OOH reduces the orbital overlap between the Fe/Co 3d and O 2p, which weakens the adsorption to oxygen-containing intermediates and thus facilitates the unfavorable O2 desorption. As a result, the MI ligand modulated (Fe,Co)OOH achieves an excellent OER performance with low overpotentials (230/290 mV at 10/100 mA cm-2 ) and excellent durability (>155 h). This study provides a novel ligand modulation strategy for the design of OER catalysts
Beschreibung:	Date Revised 06.05.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202200270