A Cu@Ni3Se2@NiSe / NF multifunctional electrode material and its preparation method

By constructing a Ni3Se2@NiSe heterostructure on the surface of nickel foam and anchoring copper particles, a Cu@Ni3Se2@NiSe/NF multifunctional electrode material is formed, which solves the problems of poor catalytic activity and high cost in the prior art. It realizes efficient HER, SOR and ORR reactions, and supports the self-driven efficient hydrogen production and sulfur recovery of zinc-air batteries.

CN119776888BActive Publication Date: 2025-10-28CHANGZHOU UNIV
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Patent Information

Application Number
CN202411859487.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-10-28
Estimated Expiration
2044-12-17

AI Technical Summary

Technical Problem

In the prior art, multifunctional electrode materials have high overpotentials in the sulfur ion oxidation reaction (SOR), hydrogen evolution reaction (HER), and oxygen reduction reaction (ORR), but poor catalytic activity, high cost, easy aggregation, and poor conductivity.

Method used

A Cu@Ni3Se2@NiSe/NF multifunctional electrode material was used. By constructing a Ni3Se2@NiSe heterostructure on the surface of nickel foam and uniformly anchoring copper particles on it, a nanosphere-rod composite material was formed. The unique electronic structure and strong metallic bonds of transition metal selenides were utilized to promote electron transfer and catalytic activity.

Benefits of technology

It significantly improves electrocatalytic efficiency, reduces overpotential, enhances catalyst stability and conductivity, avoids catalyst aggregation, and enables low-cost, high-efficiency HER, SOR, and ORR reactions, supporting self-driven high-efficiency hydrogen production and sulfur recovery using zinc-air batteries.

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Abstract

This invention relates to the field of electrocatalysis technology, specifically to a Cu@Ni3Se2@NiSe / NF multifunctional electrode material and its preparation method. Currently, multifunctional electrode materials simultaneously possessing SOR, HER, and ORR electrocatalytic activities suffer from high overpotentials and poor catalytic activity. To address these issues, this invention successfully constructs a Ni3Se2@NiSe heterostructure on the surface of porous nickel foam and cleverly anchors Cu micron-sized particles uniformly onto this structure. This multiphase interface formation not only promotes efficient electron transfer between Cu and Ni3Se2@NiSe but also significantly improves the adsorption behavior of key intermediates in the HER, SOR, and ORR processes through multi-site synergistic effects. The obtained Cu@Ni3Se2@NiSe / NF exhibits excellent SOR, HER, and ORR electrocatalytic activities.
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Citation Information

Patent Citations

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