一种g-C3N4表面构筑的FLPs无金属催化剂的制备方法及其应用
By constructing metal-free FLP catalysts on the surface of g-C3N4, the problems of difficult recovery and low activity of existing catalysts were solved, and highly efficient selective hydrogenation of α,β-unsaturated aldehydes was achieved, with significantly improved catalyst stability and selectivity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIANGTAN UNIV
- Filing Date
- 2024-04-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing selective hydrogenation catalysts for α,β-unsaturated aldehydes suffer from problems such as non-recoverable catalysts, unstable metal catalysts, and low activity of metal-free catalysts. In particular, homogeneous FLP catalysts use expensive compounds, which makes recovery and purification difficult.
A method for preparing metal-free FLP catalysts constructed on g-C3N4 surfaces involves steps such as ball milling of mixed nitrogen sources and ammonium acetate, freeze drying, microwave synthesis, and calcination to form a heterogeneous catalyst. Boron sources are used as Lewis acid sites to enhance catalytic activity and stability.
Under conditions of 130℃ and 1MPa H2, 100% conversion of cinnamaldehyde and 92.2% selectivity of cinnamyl alcohol were achieved. The hydrogenation reaction was effective, and the catalyst was highly stable and easy to recover.
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Figure CN118253329B_ABST