Fe, Mo co-doping enhances the OER performance of nickel sulfide nanoflakes for seawater electrolysis

Tao, Yunjuan; Xu, Zhikun; Yan, Rui; Sun, Yujing; Lin, Shuangyan

doi:10.1016/j.jallcom.2024.177480

Journal of Alloys and Compounds

2025

DOI: 10.1016/j.jallcom.2024.177480

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Fe, Mo co-doping enhances the OER performance of nickel sulfide nanoflakes for seawater electrolysis

Yunjuan Tao,

Zhikun Xu,

Rui Yan

et al.

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Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO₃/CoFe Layered Double Hydroxide Electrocatalyst

Yao,

Zou,

Sun

et al. 2024

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Hydrogen is an essential energy resource, playing a pivotal role in advancing a sustainable future. Electrolysis of seawater shows great potential for large‐scale hydrogen production but encounters challenges such as electrode corrosion caused by chlorine evolution. Herein, a durable CoCO3/CoFe layered double hydroxide (LDH) electrocatalyst is presented for alkaline seawater oxidation, showcasing resistance to corrosion and stable operation exceeding 1,000 h at a high current density of 1 A cm−2. The results indicate that CoCO3 within the electrocatalyst undergoes conversion into CoOOH and releases CO32− during electrolysis. The incorporation of CO32− within its layers and the anchoring of the electrocatalyst's surface prevent the adverse adsorption of chloride ions, enhancing resistance to chloride ion corrosion, thereby protecting the active sites of the electrocatalyst effectively.

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Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO₃/CoFe Layered Double Hydroxide Electrocatalyst

Yao,

Zou,

Sun

et al. 2024

Small

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Fe, Mo co-doping enhances the OER performance of nickel sulfide nanoflakes for seawater electrolysis

Cited by 1 publication

References 59 publications

Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO₃/CoFe Layered Double Hydroxide Electrocatalyst

Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO₃/CoFe Layered Double Hydroxide Electrocatalyst

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Fe, Mo co-doping enhances the OER performance of nickel sulfide nanoflakes for seawater electrolysis

Cited by 1 publication

References 59 publications

Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO3/CoFe Layered Double Hydroxide Electrocatalyst

Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO3/CoFe Layered Double Hydroxide Electrocatalyst

Contact Info

Product

Resources

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Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO₃/CoFe Layered Double Hydroxide Electrocatalyst

Ultrastable Seawater Oxidation at Ampere‐level Current Densities with Corrosion‐resistant CoCO₃/CoFe Layered Double Hydroxide Electrocatalyst