Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis

Xinxuan Duan; Qihao Sha; Pengsong Li; Tianshui Li; Guotao Yang; Wei Liu; Ende Yu; Daojin Zhou; Jinjie Fang; Wenxing Chen; Yizhen Chen; Lirong Zheng; Jiangwen Liao; Zeyu Wang; Yaping Li; Hongbin Yang; Guoxin Zhang; Zhongbin Zhuang; Sung Fu Hung; Changfei Jing; Jun Luo; Lu Bai; Juncai Dong; Hai Xiao; Wen Liu; Yun Kuang; Bin Liu; Xiaoming Sun

doi:10.1038/s41467-024-46140-y

Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis

Xinxuan Duan, Qihao Sha, Pengsong Li, Tianshui Li, Guotao Yang, Wei Liu, Ende Yu, Daojin Zhou, Jinjie Fang, Wenxing Chen, Yizhen Chen, Lirong Zheng, Jiangwen Liao, Zeyu Wang, Yaping Li, Hongbin Yang, Guoxin Zhang, Zhongbin Zhuang, Sung Fu Hung, Changfei JingJun Luo, Lu Bai, Juncai Dong, Hai Xiao, Wen Liu, Yun Kuang^*, Bin Liu^*, Xiaoming Sun^*

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

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.

Original language	English
Article number	1973
Journal	Nature Communications
Volume	15
Issue number	1
DOIs	https://doi.org/10.1038/s41467-024-46140-y
Publication status	Published - Dec 2024

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Duan, X., Sha, Q., Li, P., Li, T., Yang, G., Liu, W., Yu, E., Zhou, D., Fang, J., Chen, W., Chen, Y., Zheng, L., Liao, J., Wang, Z., Li, Y., Yang, H., Zhang, G., Zhuang, Z., Hung, S. F., ... Sun, X. (2024). Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis. Nature Communications, 15(1), Article 1973. https://doi.org/10.1038/s41467-024-46140-y

@article{3ab33d89b0ca4ad689029a2eb08da6d6,

title = "Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis",

abstract = "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.",

author = "Xinxuan Duan and Qihao Sha and Pengsong Li and Tianshui Li and Guotao Yang and Wei Liu and Ende Yu and Daojin Zhou and Jinjie Fang and Wenxing Chen and Yizhen Chen and Lirong Zheng and Jiangwen Liao and Zeyu Wang and Yaping Li and Hongbin Yang and Guoxin Zhang and Zhongbin Zhuang and Hung, {Sung Fu} and Changfei Jing and Jun Luo and Lu Bai and Juncai Dong and Hai Xiao and Wen Liu and Yun Kuang and Bin Liu and Xiaoming Sun",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = dec,

doi = "10.1038/s41467-024-46140-y",

language = "English",

volume = "15",

journal = "Nature Communications",

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Duan, X, Sha, Q, Li, P, Li, T, Yang, G, Liu, W, Yu, E, Zhou, D, Fang, J, Chen, W, Chen, Y, Zheng, L, Liao, J, Wang, Z, Li, Y, Yang, H, Zhang, G, Zhuang, Z, Hung, SF, Jing, C, Luo, J, Bai, L, Dong, J, Xiao, H, Liu, W, Kuang, Y, Liu, B & Sun, X 2024, 'Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis', Nature Communications, vol. 15, no. 1, 1973. https://doi.org/10.1038/s41467-024-46140-y

TY - JOUR

T1 - Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis

AU - Duan, Xinxuan

AU - Sha, Qihao

AU - Li, Pengsong

AU - Li, Tianshui

AU - Yang, Guotao

AU - Liu, Wei

AU - Yu, Ende

AU - Zhou, Daojin

AU - Fang, Jinjie

AU - Chen, Wenxing

AU - Chen, Yizhen

AU - Zheng, Lirong

AU - Liao, Jiangwen

AU - Wang, Zeyu

AU - Li, Yaping

AU - Yang, Hongbin

AU - Zhang, Guoxin

AU - Zhuang, Zhongbin

AU - Hung, Sung Fu

AU - Jing, Changfei

AU - Luo, Jun

AU - Bai, Lu

AU - Dong, Juncai

AU - Xiao, Hai

AU - Liu, Wen

AU - Kuang, Yun

AU - Liu, Bin

AU - Sun, Xiaoming

PY - 2024/12

Y1 - 2024/12

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85186843285&partnerID=8YFLogxK

U2 - 10.1038/s41467-024-46140-y

DO - 10.1038/s41467-024-46140-y

M3 - Article

C2 - 38438342

AN - SCOPUS:85186843285

SN - 2041-1723

VL - 15

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 1973

ER -

Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis

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