一种钙钛矿基双功能催化剂及其制备方法和应用
By depositing vertical graphene arrays on the surface of perovskite oxides, the problem of low electronic conductivity of perovskite oxides was solved, achieving efficient charge transfer and structural stability in zinc-air batteries, improving the electrocatalytic performance of catalysts and the commercial application of flexible zinc-air batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF GEOSCIENCES (WUHAN)
- Filing Date
- 2023-12-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing perovskite oxides have low electronic conductivity, which limits their application in zinc-air batteries. Furthermore, catalysts combined with graphene have poor stability, and their electrocatalytic performance needs to be improved.
A vertical graphene array was deposited on the surface of a perovskite oxide using plasma-enhanced chemical vapor deposition (PECVD) to form a core-shell structured perovskite-based bifunctional catalyst. The rapid growth of the vertical graphene array was promoted by dissolving the metal portion of the perovskite surface under a medium-temperature reducing atmosphere.
It significantly improves the electronic conductivity and catalytic activity of perovskite oxides, enhances the charge transfer rate and structural stability of zinc-air batteries, exhibits good rate performance and cycle performance, and expands the commercial application of flexible zinc-air batteries.
Smart Images
Figure CN117790815B_ABST