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 Jing

Jun Luo, Lu Bai, Juncai Dong, Hai Xiao, Wen Liu, Yun Kuang^*, Bin Liu^*, Xiaoming Sun^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

182 Citations (Scopus)

187 Downloads (CityUHK Scholars)

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. © The Author(s) 2024.

Original language	English
Article number	1973
Journal	Nature Communications
Volume	15
Online published	4 Mar 2024
DOIs	https://doi.org/10.1038/s41467-024-46140-y
Publication status	Published - 2024

Funding

The authors thank the help from Dr. Cejun Hu for the help on characterization. X.S. and Y.K. acknowledge financial support from the National Key Research and Development Project (2021YFA1502200), the National Natural Science Foundation of China (21935001), Beijing Natural Science Foundation (Z210016), a long-term subsidy from China’s Ministry of Finance and the Ministry of Education. B.L. acknowledges financial support from the City University of Hong Kong start up fund (9020003) and ITF-RTH-Global STEM Professorship (9446006).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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RGC-funded

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10.1038/s41467-024-46140-y

229060354.pdfFinal Published version, 1.77 MBLicence: CC BY

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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, Article 1973. https://doi.org/10.1038/s41467-024-46140-y

@article{a67ba700fcb54a288c59be70dff92fd9,

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. {\textcopyright} The Author(s) 2024.",

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 Sung-Fu Hung 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",

year = "2024",

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

language = "English",

volume = "15",

journal = "Nature Communications",

issn = "2041-1723",

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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, 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, 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

Y1 - 2024

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. © The Author(s) 2024.

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. © The Author(s) 2024.

UR - https://www.scopus.com/pages/publications/85186843285

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85186843285&origin=recordpage

U2 - 10.1038/s41467-024-46140-y

DO - 10.1038/s41467-024-46140-y

M3 - RGC 21 - Publication in refereed journal

C2 - 38438342

SN - 2041-1723

VL - 15

JO - Nature Communications

JF - Nature Communications

M1 - 1973

ER -

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

Abstract

Funding

UN SDGs

Publisher's Copyright Statement

RGC Funding Information

Access Output

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ITF-RTH: GSP212 - Research Talent Hub

RMGS: On-site Green Hydrogen Production and Storage for Distributed Carbon Neutral Applications

Cite this

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

Abstract

Funding

UN SDGs

Publisher's Copyright Statement

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

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Projects

ITF-RTH: GSP212 - Research Talent Hub

RMGS: On-site Green Hydrogen Production and Storage for Distributed Carbon Neutral Applications

Cite this