非贵双金属碱性直接甲醇燃料电池阳极催化剂的制备方法
By loading a non-precious bimetallic alloy catalyst onto carbon nanofibers, the problems of scarcity and easy poisoning of precious metal catalysts have been solved, achieving high efficiency and stability in methanol oxidation, and demonstrating broad potential for industrial applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2023-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
In existing direct methanol fuel cells, the scarcity of precious metal catalysts and their susceptibility to CO poisoning lead to slow six-electron transfer kinetics in methanol oxidation at the anode and severe electrolyte carbonation, thus affecting energy efficiency.
Carbon nanofibers were prepared using electrospinning technology as a carrier to support a non-noble bimetallic alloy based on MOFs. Through in-situ growth and two-step pyrolysis treatment, a highly dispersed non-noble bimetallic catalyst was formed, which improved the exposure of active sites and catalytic efficiency.
This study achieves high dispersibility, stability, and specific surface area for non-precious metal catalysts, improves the catalyst's resistance to poisoning and charge transfer performance, and reduces nanoparticle aggregation, demonstrating promising prospects for industrial applications.
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Figure CN116706096B_ABST