一种跨尺度金属半导体异质结催化剂及其制备方法和应用
By directionally anchoring gold single atoms and nanoparticles on a MoS2 semiconductor substrate, a multi-scale metal-semiconductor heterojunction catalyst was formed, which solved the kinetic and thermodynamic difficulties in the CO2 reduction process and achieved efficient conversion into high-energy-density C2 products such as acetic acid.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHWEST PETROLEUM UNIV
- Filing Date
- 2024-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing photocatalysts exhibit slow multi-electron and multi-proton transfer kinetics during CO2 reduction, and face difficulties in C-C coupling thermodynamics, making it challenging to efficiently convert CO2 into high-energy-density C2 products such as acetic acid.
A MoS2 semiconductor substrate rich in Mo boundaries was prepared using a salt template, and atomic- and nanoscale gold was oriented and anchored to the active surface of the substrate to form a multi-scale metal-semiconductor heterojunction catalyst. The metal anchoring was controlled by irradiation with specific wavelength light.
It achieves highly selective and efficient CO2 photoreduction to C2 products, especially acetic acid, with high yield and good stability, and solves the kinetic and thermodynamic barriers.
Smart Images
Figure CN118341448B_ABST