一种分子筛负载PdBi双金属催化剂及制备方法和应用
By preparing a core-shell structure of PdBi bimetallic catalyst on a molecular sieve, the problems of low activity and easy aggregation of traditional catalysts in the oxidative esterification reaction of benzyl alcohol are solved, achieving a high efficiency and stable catalytic effect, which is suitable for the preparation of aromatic ester compounds.
Patent Information
- Application Number
- CN202610657449.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, traditional catalysts have problems such as low catalytic activity and poor selectivity in the oxidative esterification reaction of benzyl alcohol, and are difficult to separate and reuse. In addition, the existing preparation methods of supported Pd catalysts are energy-intensive and metal particles are prone to agglomeration, making it difficult to control the core-shell structure.
A PdBi bimetallic catalyst supported on a molecular sieve was prepared by a wet chemical method to form a core-shell structure with Pd as the shell and Bi as the core, avoiding high-temperature calcination. The clear core-shell structure was formed by utilizing the pore structure and acidic sites of the molecular sieve with the synergistic effect between Bi and Pd, thereby improving catalytic activity and stability.
It significantly improves the selectivity and conversion rate of benzyl alcohol oxidative esterification reaction, reduces energy consumption, makes the catalyst easy to separate and recycle, and the stability and pore structure of the molecular sieve protect the BiPd core-shell structure, suppressing side reactions and carbon deposition.
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Abstract
Citation Information
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