一种钌稀土固溶体氧化物电催化剂及其制备方法
Ruthenium rare earth solid solution oxide Ru1-xMxO2 catalyst was prepared by low-temperature molten salt method, which solved the problems of stability and high cost of Ru-based catalysts and achieved efficient and stable hydrogen production performance through water electrolysis and mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PEKING UNIV
- Filing Date
- 2023-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing Ru-based catalysts suffer from insufficient stability, high cost, and difficulty in mass production during water electrolysis for hydrogen production. Furthermore, their insufficient mass transfer and conductivity hinder their promotion in industrial applications.
Ruthenium rare earth solid solution oxide Ru1-xMxO2 catalyst was prepared by a low-temperature molten salt-assisted synthesis method. Ruthenium trichloride and rare earth metal nitrates were rapidly reacted in molten salt to form a layered porous structure with a particle size of 3-4 nm, which is suitable for the oxygen evolution reaction of water electrolysis.
A ruthenium-based catalyst with high activity and high stability has been developed, which can achieve high current density at low cell voltage and maintain long-term stability at high current density, thereby reducing production costs and enabling mass production.
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Figure CN117107277B_ABST