Magnetic-field-assisted preparation of copper-nickel-iron alloy electrode, electrode, and electrolysis device

The copper-nickel-ferroalloy electrode is prepared by magnetic field-assisted electrodeposition method, which solves the problem of low unit catalytic activity of traditional electrodes and achieves a high-efficiency and low-energy-consuming electrolytic hydrogen production effect.

WO2025065872A1 Publication Date: 2025-04-03PETROCHINA SHENZHEN NEW ENERGY RESEARCH INSTITUTE CO LTD +1
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Patent Information

Application Number
PCT/CN2023/136659
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-27
Filing Date
2023-12-06
Publication Date
2025-04-03

AI Technical Summary

Technical Problem

The unit catalytic activity of traditional ferroalloy nickel electrodes is low, which leads to the easy fall of active components under high current density, causing the problem of electrode inactivation.

Method used

Co-depositing of Cu, Ni, and Fe elements is used to regulate the magnetic field size, deposition current and time, and Cu-Ni-Fe alloys with a dendritic morphology with high specific surface area to improve the unit catalytic activity of the electrode.

Benefits of technology

The unit catalytic activity of the electrode is improved, the electrolytic energy consumption is reduced, and the electrolytic water production cost is reduced by using inexpensive transition metal materials.

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Abstract

Provided in the present invention are the magnetic-field-assisted preparation of a copper-nickel-iron alloy electrode, an electrode, and an electrolysis device. A method for the magnetic-field-assisted preparation of a copper-nickel-iron alloy electrode comprises: preparing an electrodeposition solution, inserting a three-electrode system into the electrodeposition solution, depositing a copper-nickel-iron alloy on a cathode by means of an electrodeposition reaction with the assistance of a magnetic field, and then separating the copper-nickel-iron alloy from the three-electrode system, so as to obtain a copper-nickel-iron alloy electrode. In the present invention, a magnetic field is introduced for assistance, and the microstructure of the copper-nickel-iron alloy electrode is jointly controlled by means of the intensity of the magnetic field and the time for electrodeposition so as to obtain a dendritic Cu-Ni-Fe alloy electrode having a high specific surface area, thereby increasing reaction active sites of same during the process of an electrocatalytic reaction.
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