Preparation Method and Application of Self-Supported Iron-Manganese Co-Doped Nickel Cobalt Selenide Nanorod Array Catalyst

The nickel-cobalt selenide nanorod array catalyst that supports iron-manganese co-doped co-doped on a foam nickel substrate was prepared by hydrothermal method on a foam nickel substrate, which solved the problems of slow reaction kinetics and scarce reserves of precious metal catalysts in the existing electrocatalytic water decomposition technology, and achieved efficient and low-cost hydrogen production effect of electrolytic water.

CN116377497BActive Publication Date: 2025-06-24GUANGXI UNIV
0 Cites 0 Cited by

Patent Information

Application Number
CN202310346039.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-03
Publication Date
2025-06-24
Estimated Expiration
2043-04-03

AI Technical Summary

Technical Problem

In the existing electrocatalytic water decomposition technology, the kinetics of anode oxygen evolution reaction and cathode hydrogen evolution reaction are slow and require a high voltage, which limits the conversion efficiency of electrolytic water, and the reserves of precious metal catalysts are scarce and expensive, which limits their practical application.

Method used

The nickel-cobalt selenide nanorod array catalyst that supports iron-manganese co-doped co-doped nickel-cobalt selenide nanorod array catalyst was prepared on a foam nickel substrate by hydrothermal method. The electronic structure of the catalyst was regulated by heterogeneous elements, increasing the active site and specific surface area, and improving conductivity and stability.

Benefits of technology

The excellent electrolytic activity and stability of the catalyst is achieved, the electrolytic efficiency is improved, the production cost is reduced, and the industrial application prospects are broad.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a preparation method and application of a self-supporting iron-manganese co-doped nickel-cobalt selenide nanorod array catalyst, belonging to the technical field of electrocatalytic materials, and comprising the following steps: using nickel foam as a growth substrate, first preparing an iron-manganese co-doped precursor by a hydrothermal method according to a certain stoichiometric ratio of a nickel source, a cobalt source, an iron source, and a manganese source, and then obtaining the catalyst through selenization treatment. The invention uses the double doping of inexpensive and abundant transition metal elements to adjust the electronic structure of the bimetallic selenide, improving its intrinsic activity; the nanorod array structure increases the active sites and specific surface area of the catalyst, improving its apparent activity; the conductive substrate nickel foam improves the conductivity and stability of the catalyst, thereby synergistically promoting its electrolytic water activity and stability, and applying it to electrolytic water hydrogen production, improving the electrolytic water efficiency. The preparation method of the invention is simple and easy to prepare in batches.
Need to check novelty before this filing date? Find Prior Art