Preparation method and application of iridium-based catalyst with asymmetric structure
By preparing asymmetric iridium-based catalysts, the problem of structural symmetry limitations of existing iridium-based catalysts was solved, efficient and low-cost hydrogen production by water electrolysis was achieved, and the application of clean energy was promoted.
Patent Information
- Application Number
- CN202511137463.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-14
- Publication Date
- 2025-09-23
AI Technical Summary
The symmetrical structure of existing iridium-based catalysts makes it difficult to fully expose active sites, making it difficult to improve catalytic performance. In addition, their high cost and poor stability limit their application in hydrogen production by water electrolysis.
An asymmetric iridium-based catalyst was prepared using a one-pot method and air calcination technology. By introducing lanthanide metal salts and glucose urea, the electronic structure and coordination environment of the Ir active site were regulated, the symmetry of IrO2 was broken, an asymmetric structure was formed, and the activity and stability of the catalyst were enhanced.
It significantly improves the catalytic activity and chemical stability of the catalyst, reduces the preparation cost, extends the service life, improves the efficiency of hydrogen production by water electrolysis, and promotes the development and utilization of clean energy.