一种Mncluster / MnDAC-N-C催化剂的制备方法
By preparing the Mncluster/MnDAC-NC catalyst, the problems of insufficient activity and stability of non-precious metal fuel cell catalysts in ORR were solved, achieving high efficiency of electrocatalytic activity and methanol resistance. The catalyst exhibited excellent performance in the oxygen reduction reaction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KUNMING UNIV OF SCI & TECH
- Filing Date
- 2023-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing non-precious metal fuel cell catalysts suffer from insufficient activity and stability issues in the oxygen reduction reaction (ORR), especially manganese-centered catalysts which are prone to deactivation in the Fenton reaction. Furthermore, the scaling limit of single-atom catalysts makes it difficult to simultaneously optimize the adsorption and desorption of intermediates in multiple reaction steps.
The Mncluster/MnDAC-NC catalyst was prepared by coordinating glycine with manganese chloride, followed by calcination, acid washing, and secondary calcination to form Mn clusters and Mn double single atoms dispersed on a nitrogen-doped carbon support, thereby regulating the electronic structure and adsorption intensity of the metal active sites.
It achieves high electrocatalytic activity, stability and methanol resistance. The catalyst has an extremely high specific surface area and an amorphous porous structure, which significantly improves ORR performance and is superior to commercial Pt/C catalysts.
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Figure CN117476959B_ABST