Durable Ampere-Scale Seawater Electrolysis Driven by Ba-Doped NiFe Layered Double Hydroxide

Direct seawater electrolysis is promising for green hydrogen production from earth's most abundant water resource, but its anode suffers from chloride-induced corrosion. Herein, Ba-doped NiFe layered double hydroxide supported on Ni foam (Ba-NiFe LDH/NF) is demonstrated as a high-performance anode for durable alkaline seawater oxidation. Such Ba-NiFe LDH/NF needs only an overpotential of 342 mV to achieve 1000 mA cm<sup>-2</sup> and operates stably for 1500 h with negligible degradation and minimal active chlorine generation. Ba doping not only accelerates catalyst surface reconstruction but also favors the selective adsorption of OH<sup>-</sup> vs Cl<sup>-</sup> over the anode. The membrane electrode assembly electrolyzer composed of Ba-NiFe LDH/NF and Pt/C/NF demonstrates stable operation at 1000 mA cm<sup>-2</sup> for 500 h.

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Publication Details

Journal
Inorganic Chemistry
Published
2025-10-14
DOI
https://doi.org/10.1021/acs.inorgchem.5c03907
Citations
4
Primary Topic
Electrocatalysts for Energy Conversion
Type
article
Field-Weighted Citation Impact
1.45
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article

Durable Ampere-Scale Seawater Electrolysis Driven by Ba-Doped NiFe Layered Double Hydroxide

Guanwei Cui, Yuchun Ren, Mohamed S. Hamdy, Yang Luo et al.
4 citations
Inorganic Chemistry
Electrocatalysts for Energy Conversion
1.45
article

Durable Ampere-Scale Seawater Electrolysis Driven by Ba-Doped NiFe Layered Double Hydroxide

Guanwei Cui, Yuchun Ren, Mohamed S. Hamdy, Yang Luo, Xuefei Liu, Xuping Sun, Imran Shakir, Zixiao Li, Bo Tang, Xixi Zhang, Chaoxin Yang, Shengjun Sun, Fatma A. Ibrahim
article en
4 citations

Abstract

Direct seawater electrolysis is promising for green hydrogen production from earth's most abundant water resource, but its anode suffers from chloride-induced corrosion. Herein, Ba-doped NiFe layered double hydroxide supported on Ni foam (Ba-NiFe LDH/NF) is demonstrated as a high-performance anode for durable alkaline seawater oxidation. Such Ba-NiFe LDH/NF needs only an overpotential of 342 mV to achieve 1000 mA cm<sup>-2</sup> and operates stably for 1500 h with negligible degradation and minimal active chlorine generation. Ba doping not only accelerates catalyst surface reconstruction but also favors the selective adsorption of OH<sup>-</sup> vs Cl<sup>-</sup> over the anode. The membrane electrode assembly electrolyzer composed of Ba-NiFe LDH/NF and Pt/C/NF demonstrates stable operation at 1000 mA cm<sup>-2</sup> for 500 h.

Inorganic ChemistryVol. 64(42)
NSF NCAR High Altitude Observatory (US), Guizhou Normal University (CN), Sichuan University (CN), Shandong Normal University (CN), West China Hospital of Sichuan University (CN), Islamic University of Madinah (SA), Laoshan Laboratory, Southwest Jiaotong University (CN), King Khalid University (SA)
Openalex Percentile: Top 17%
Electrocatalysts for Energy Conversion
1.45
DOISourceOpenAlex
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