一种TiO2 / Co3O4 / Ni复合电催化析氢材料及其制备方法和应用
By controlling the amount of Ni deposition on the TiO2/Co3O4/CC surface, penetrating microcracks are induced in the Co3O4 layer, constructing a three-dimensional porous conductive network. This solves the problem of Ni covering and blocking the pores, and improves the hydrogen evolution reaction kinetics rate and material stability in water electrolysis for hydrogen production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU UNIV
- Filing Date
- 2026-05-27
- Publication Date
- 2026-07-17
AI Technical Summary
In the preparation process of existing Ni composite materials, Ni covers the oxide surface to form a dense layer, which blocks the pores and reduces the number of active sites. In addition, the high cost of precious metal catalysts limits the large-scale application of water electrolysis for hydrogen production.
By controlling the amount of Ni electrochemical deposition, the internal stress generated by Ni nanoparticle deposition induces penetrating microcracks in the Co3O4 layer, constructing a TiO2/Co3O4/Ni three-phase heterogeneous interface, forming a three-dimensional porous conductive network structure, optimizing the electron transport path and exposing active sites.
It significantly improved the hydrogen evolution reaction kinetic rate, increased the electrochemical active area and stability of the material, reduced the charge transfer resistance, and extended the cyclic and chronocurrent operation stability of the material.
Smart Images
Figure CN122406294A_ABST