一种刃型位错线伴生的高密度电子自旋波型氧化物催化剂的制备方法及应用
By introducing heavy rare earth element Y and pre-transition group Mn into Ru-based oxides, a high-density electron spin wave is formed in the edge dislocation line, which solves the problem of poor stability of Ru-based catalysts and realizes a highly efficient oxygen evolution reaction, which is suitable for water electrolysis hydrogen production devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING UNIV OF CHEM TECH
- Filing Date
- 2024-12-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing Ru-based catalysts suffer from poor stability in the oxygen evolution reaction, making them difficult to use in acidic environments for extended periods. Furthermore, commercial IrO2 catalysts are expensive and difficult to achieve efficient catalysis in water electrolysis for hydrogen production.
By employing a strategy of co-doping heavy rare earth Y and pre-transition group Mn, and through a method of thermally assisted sodium borohydride reduction of the metal precursor and co-pyrolysis after polyaniline coating, edge dislocation lines are formed in Ru-based oxides, generating high-density electron spin waves and improving the activity and stability of the catalyst.
The prepared RuMnYO2 oxide catalyst exhibits ultra-low overpotential and long-term stability under acidic conditions, surpassing commercial IrO2 catalysts. It is suitable for proton exchange membrane water electrolysis hydrogen production devices, realizing a highly efficient oxygen evolution reaction.
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