Strontium-ruthenium oxide composite catalytic material as well as preparation method and application thereof

By doping strontium into ruthenium oxide, the strontium-ruthenium oxide composite catalytic material is solved, and the existing catalysts are insufficient activity and poor stability are achieved, and high activity and stability are achieved. It is suitable for PEM electrolyzed hydrogen anode catalyst, reducing costs.

CN119685870AInactive Publication Date: 2025-03-25HUNAN UNIV +1
2 Cites 0 Cited by

Patent Information

Application Number
CN202411967709.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing proton exchange membrane water electrolytic cell catalysts have problems such as insufficient activity, poor stability and high cost. Especially under high anode potential and strong corrosive conditions, the iridium-based catalyst has low reserves, high prices and insufficient activity, which hinders the development of PEM electrolytic water.

Method used

By doping strontium (Sr) into ruthenium oxide (RuO2), a strontium-ruthenium oxide composite catalytic material is formed. The atomic ratio of strontium to ruthenium is 2%~10%. Sr is doped into RuO2 by salt sealing method to regulate RuO2 surfactant oxygen species and improve the electrochemical performance of the catalytic material.

Benefits of technology

It has achieved high activity and stability of strontium-ruthenium oxide composite catalytic material, and it has stable existence in acidic media. It is suitable for PEM electrolyzed hydrogen production anode catalyst, which improves the overall performance and stability of the catalyst and reduces costs.

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

Abstract

The invention relates to a strontium-ruthenium oxide composite catalytic material which is composed of strontium (Sr)-doped ruthenium oxide (RuO2), and the atomic ratio of strontium (Sr) to ruthenium (Ru) is 2%-10%. Meanwhile, the invention further discloses a preparation method and application of the catalytic material. The obtained catalytic material is good in stability, can stably exist in an acid medium, can be used as a PEM water electrolysis hydrogen production anode catalyst to be applied to an acid water electrolysis oxygen evolution reaction, enhances the stability while improving the intrinsic reaction activity, and can be used as a catalyst of a proton exchange membrane water electrolysis cell.
Need to check novelty before this filing date? Find Prior Art