Oxygen evolution catalyst of surface-sulfided co3o4 mesoporous layered nano-pile structure and preparation method thereof
By preparing a surface-sulfurized Co3O4 mesoporous layered nanostructure through hydrothermal synthesis and calcination, the problem of insufficient conductivity and electronic conductivity of Co3O4-based catalysts was solved, achieving highly efficient oxygen evolution catalytic activity and stability, making it suitable for industrial applications.
CN116288407BActive Publication Date: 2026-06-19SHANGHAI UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI UNIV
- Filing Date
- 2023-03-03
- Publication Date
- 2026-06-19
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Figure CN116288407B_ABST
Abstract
This invention discloses an oxygen evolution catalyst with a surface-sulfurized Co3O4 mesoporous layered nanopile structure and its preparation method, belonging to the field of electrochemical energy conversion and storage technology. The preparation method includes: uniformly mixing Co(NO3)2·6H2O with urea in a certain proportion, and performing hydrothermal synthesis to obtain a layered nanopile precursor; further calcining the precursor in air to convert it into a Co3O4 mesoporous layered nanopile; and then immersing it in Na2S solution to obtain a partially sulfur-substituted surface Co3O4 mesoporous layered nanopile, which serves as the oxygen evolution catalyst. The preparation method of this invention is simple, and the obtained catalyst has a large specific surface area, high conductivity, fast mass transfer, stable structure, and excellent electrochemical activity for oxygen evolution.
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