具有异质结结构的Ni / TiO2-ZrO2复合催化剂及其制备方法和应用
The Ni/TiO2-ZrO2 composite catalyst was prepared by a one-step reduction heat treatment method, which solved the problems of decreased specific surface area and damaged pore structure caused by high-temperature treatment of TiO2-ZrO2 support in traditional methods. This method enabled efficient hydrodeoxygenation reaction, especially high conversion rate and selectivity in lignin phenolic compounds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG UNIV OF TECH
- Filing Date
- 2025-12-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing TiO2-ZrO2 composite supports require high-temperature calcination to form a stable structure, which leads to a decrease in specific surface area and damage to the pore structure. Furthermore, traditional methods are cumbersome and energy-intensive, making it difficult to exhibit efficient catalytic performance in the hydrodeoxygenation reaction of bio-oils.
A one-step reduction heat treatment method was used to directly prepare a Ni/TiO2-ZrO2 composite support with a heterojunction structure. Nickel metal was loaded by co-precipitation and reduced in the same step, forming a synergistic effect between the Ni metal sites and the TiO2-ZrO2 support.
The preparation process was simplified, while maintaining a high specific surface area and oxygen vacancies. This improved the activity and selectivity of the catalyst, enabling a highly efficient hydrodeoxygenation reaction. In particular, it exhibited a conversion rate of nearly 100% and a cyclohexane selectivity of over 99% in the conversion of lignin phenolic compounds.
Smart Images
Figure CN121372415B_ABST