A nickel-based magnetic hollow fiber self-supporting electrode, a preparation method thereof and application thereof in a magnetic field reinforced water decomposition reaction
Nickel-based magnetic hollow fiber self-supporting electrodes were prepared by multi-metal co-doping and Kirkendall effect. Combined with multiple magnetic field enhancement modes, the activity and stability problems of nickel-based catalysts in alkaline water electrolysis were solved, improving the efficiency and stability of water electrolysis reaction, making them suitable for industrial applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHONGBEI UNIV
- Filing Date
- 2026-06-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing nickel-based catalysts exhibit insufficient catalytic activity, are prone to corrosion, have poor stability, and are susceptible to failure under dynamic operating conditions. Furthermore, their limited water dissociation capacity leads to low efficiency in water electrolysis.
A nickel-based magnetic hollow fiber self-supporting electrode was prepared by employing a multi-metal co-doping strategy and the Kirkendall effect. By combining external magnetic field enhancement, internal field enhancement and magnetocaloric assisted mode, the surface morphology and magnetic properties of the electrode were controlled to improve catalytic activity.
It significantly reduces the overpotentials of hydrogen and oxygen evolution, improves the efficiency of alkaline water electrolysis, reduces the overpotential of the electrode by 5-30% under magnetic field assistance, and enhances stability, making it suitable for industrial mass production.
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Figure CN122406260A_ABST