Efficient and stable electroplating hydrogen evolution electrode and preparation method and application thereof

Three electrode deposition is carried out through an electrochemical workstation, and a specific electroplating solution is prepared to deposit nickel-phosphorus catalytic electrode material, which solves the problems of complex methods, high cost and poor high current stability in commercial production of nickel-based hydrogen evolution electrodes, and achieves efficient and stable and low-cost electrode preparation, which is suitable for industrial production.

CN120119277APending Publication Date: 2025-06-10SOUTHWEST PETROLEUM UNIV +1
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Patent Information

Application Number
CN202510175578.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-06-10

AI Technical Summary

Technical Problem

In the existing electrolytic hydrogen production technology, nickel-based hydrogen evolution electrodes have complex methods in commercial production, high cost, and poor stability of large currents, which cannot meet the needs of industrial production.

Method used

Three-electrode deposition is carried out using an electrochemical workstation. By preparing an electroplating solution containing nickel salt, hypophosphite, buffer and complexing agent, the nickel-phosphorus catalytic electrode material is deposited to form a uniformly dispersed nanoparticle thin film structure.

Benefits of technology

The prepared high-efficiency and stable electroplating hydrogen-extraction electrode has long-term stability under large current density, is simple to operate, and is low in cost, and is suitable for large-scale industrial production.

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Abstract

The invention discloses an efficient and stable electroplating hydrogen evolution electrode and a preparation method and application thereof. The preparation method comprises the following steps that S1, a conductive substrate material is prepared and pretreated; s2, an electroplating solution is prepared, wherein the electroplating solution comprises a solvent, nickel salt, hypophosphite, a buffering agent and a complexing agent; and S3, three-electrode deposition is carried out with the electroplating liquid as an electrolyte and the pretreated conductive substrate material as a working electrode, and the efficient and stable electroplating hydrogen evolution electrode is obtained. The prepared electrode is a phosphate material with an amorphous structure, has a larger catalytic interface and more reaction active sites, and is beneficial to rapid diffusion of ions or small molecules due to the fact that open active pore channels of the electrode form permeable channels; through the synergistic effect of electrochemical parameters, the composite material has the capability of being stable for a long time under high current density. The preparation method disclosed by the invention is simple to operate, low in cost, low in equipment and process condition requirements and easy for industrial large-scale production.
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Citation Information

Cited By

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