Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis
© 2024. The Author(s)..
Seawater electrolysis offers a renewable, scalable, and economic means for green hydrogen production. However, anode corrosion by Cl- pose great challenges for its commercialization. Herein, different from conventional catalysts designed to repel Cl- adsorption, we develop an atomic Ir catalyst on cobalt iron layered double hydroxide (Ir/CoFe-LDH) to tailor Cl- adsorption and modulate the electronic structure of the Ir active center, thereby establishing a unique Ir-OH/Cl coordination for alkaline seawater electrolysis. Operando characterizations and theoretical calculations unveil the pivotal role of this coordination state to lower OER activation energy by a factor of 1.93. The Ir/CoFe-LDH exhibits a remarkable oxygen evolution reaction activity (202 mV overpotential and TOF = 7.46 O2 s-1) in 6 M NaOH+2.8 M NaCl, superior over Cl--free 6 M NaOH electrolyte (236 mV overpotential and TOF = 1.05 O2 s-1), with 100% catalytic selectivity and stability at high current densities (400-800 mA cm-2) for more than 1,000 h.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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| Enthalten in: |
Nature communications - 15(2024), 1 vom: 04. März, Seite 1973 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Duan, Xinxuan [VerfasserIn] |
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Date Revised 07.03.2024 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1038/s41467-024-46140-y |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM369282051 |
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| 245 | 1 | 0 | |a Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis |
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| 520 | |a © 2024. The Author(s). | ||
| 520 | |a Seawater electrolysis offers a renewable, scalable, and economic means for green hydrogen production. However, anode corrosion by Cl- pose great challenges for its commercialization. Herein, different from conventional catalysts designed to repel Cl- adsorption, we develop an atomic Ir catalyst on cobalt iron layered double hydroxide (Ir/CoFe-LDH) to tailor Cl- adsorption and modulate the electronic structure of the Ir active center, thereby establishing a unique Ir-OH/Cl coordination for alkaline seawater electrolysis. Operando characterizations and theoretical calculations unveil the pivotal role of this coordination state to lower OER activation energy by a factor of 1.93. The Ir/CoFe-LDH exhibits a remarkable oxygen evolution reaction activity (202 mV overpotential and TOF = 7.46 O2 s-1) in 6 M NaOH+2.8 M NaCl, superior over Cl--free 6 M NaOH electrolyte (236 mV overpotential and TOF = 1.05 O2 s-1), with 100% catalytic selectivity and stability at high current densities (400-800 mA cm-2) for more than 1,000 h | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Li, Pengsong |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Tianshui |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Guotao |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Ende |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Daojin |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Jinjie |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Wenxing |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Yizhen |e verfasserin |4 aut | |
| 700 | 1 | |a Zheng, Lirong |e verfasserin |4 aut | |
| 700 | 1 | |a Liao, Jiangwen |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Zeyu |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yaping |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Hongbin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Guoxin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhuang, Zhongbin |e verfasserin |4 aut | |
| 700 | 1 | |a Hung, Sung-Fu |e verfasserin |4 aut | |
| 700 | 1 | |a Jing, Changfei |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Bai, Lu |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Juncai |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Hai |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Wen |e verfasserin |4 aut | |
| 700 | 1 | |a Kuang, Yun |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Bin |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Xiaoming |e verfasserin |4 aut | |
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