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Updated: Aug 5, 2026

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction
Published on: August 31, 2018
Synergistic strategy for constructing highly efficient MOF aerogel catalysts for co-catalyst-free CO2 cycloaddition
Qin Peng1, Zhenxing Shen1, Qingzhu Tian1
1Department of Environmental Sciences and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
Supported metal-organic framework (MOF) aerogels efficiently catalyze CO2 cycloaddition reactions. Modified bimetallic MOFs with biochar and TREN show superior performance, enhancing CO2 conversion for industrial applications.
Area of Science:
- Materials Science
- Catalysis
- Chemical Engineering
Background:
- Metal-organic framework (MOF) aerogels offer synergistic advantages for catalysis.
- Efficient CO2 cycloaddition is crucial for sustainable chemical processes.
Purpose of the Study:
- To develop and evaluate novel MOF aerogel catalysts for CO2-epoxide cycloaddition.
- To investigate the impact of bimetallic composition, biochar doping, and polyamine modification on catalytic performance.
Main Methods:
- Fabrication of MOF aerogels using freeze-drying and spraying.
- Post-synthetic modification with tris(2-aminoethyl)amine (TREN).
- Catalytic testing in CO2-epoxide cycloaddition under optimized conditions.
Main Results:
- Bimetallic Cu/Zn MOFs outperformed monometallic counterparts in epichlorohydrin (ECH) conversion.
- Carbon-doped MOFs and TREN-modified samples showed enhanced conversion rates.
- The optimized Cu/Zn-MOF-74 aerogel achieved 70.94% conversion and 93.94% selectivity.
Conclusions:
- Synergistic effects from bimetallic design, biochar doping, and TREN modification significantly boost catalytic activity.
- The developed MOF aerogels demonstrate high efficiency and potential for industrial CO2 conversion.
- This work highlights the versatility of MOF-based heterogeneous catalysts.
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