A composite electrocatalyst of elemental selenium-nickel-iron alloy, its preparation method and its application
By in-situ growing elemental selenium-nickel-iron alloy composite electrocatalysts on foamed iron substrates, the problems of insufficient catalyst performance and stability in the oxygen evolution reaction of water electrolysis were solved, achieving electrocatalytic performance with low overpotential and high current density, which is suitable for large-scale applications.
CN116695167BActive Publication Date: 2026-05-26ANHUI UNIVERSITY OF TECHNOLOGY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI UNIVERSITY OF TECHNOLOGY
- Filing Date
- 2023-06-14
- Publication Date
- 2026-05-26
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Figure CN116695167B_ABST
Abstract
This invention relates to the field of electrocatalysis technology, specifically to a single-element selenium-nickel-iron alloy composite electrocatalyst, its preparation method, and its application. Using nickel chloride, ferrous sulfate, urea, ammonium fluoride, and selenium dioxide as precursors, a two-step hydrothermal method is employed. In the first step, a nickel-iron alloy is prepared in situ on a foamed iron substrate using nickel chloride, ferrous sulfate, urea, and ammonium fluoride precursors. In the second step, selenium dioxide is used as a selenium source to composite elemental selenium with the nickel-iron alloy, resulting in the in-situ growth of a single-element selenium-nickel-iron alloy block catalyst on a foamed iron substrate. The electrocatalyst of this invention exhibits excellent catalytic activity and stability in the electrocatalytic water desorption oxygen reaction, meeting the requirements for large-scale industrial applications.
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