Related Experiment Video
Updated: Feb 13, 2026
08:25
Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs
Published on: January 17, 2020
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Metal-organic frameworks as effective catalysts for glycerol acetalization: morphology and functionality.
Fátima Mirante1, Pedro Leo1,2, Carlos Palomino3
1LAQV/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto 4169-007 Porto Portugal.
RSC Advances
|February 12, 2026
Summary
This study optimized metal-organic frameworks (MOFs) as catalysts for converting glycerol into the fuel additive solketal. Acid-functionalized MOFs like UiO-66(Zr) and MIL-101(Cr) showed high activity and reusability in solvent-free conditions.
Area of Science:
- Catalysis
- Materials Science
- Green Chemistry
Background:
- Glycerol is a biodiesel by-product requiring valorization.
- Solketal production from glycerol is a sustainable route to fuel additives.
- Efficient and reusable catalysts are crucial for this process.
Purpose of the Study:
- To investigate the influence of MOF framework topology and acid functionality on catalytic performance.
- To compare the catalytic activity of UiO-66(Zr) and MIL-101(Cr) for solketal synthesis.
- To establish structure-property relationships for MOF catalysts.
Main Methods:
- Functionalization of UiO-66(Zr) and MIL-101(Cr) with carboxylic and sulfonic acid groups.
- Solvent-free acetalization reaction of glycerol with acetone to produce solketal.
- Optimization of reaction parameters and evaluation of catalyst stability over ten cycles.
Main Results:
- Acid-functionalized MOFs, specifically UiO-66(Zr)-(COOH)2 and MIL-101(Cr)-SO3H, exhibited high catalytic activity.
- Achieved >85% glycerol conversion and >98% solketal selectivity within 1 hour.
- Demonstrated exceptional structural stability and reusability over ten catalytic cycles.
Conclusions:
- MOF framework topology and acid functionality significantly impact catalytic performance.
- Acid-functionalized MIL-101(Cr) is effective for solvent-free solketal production.
- UiO-66(Zr) and MIL-101(Cr) serve as highly effective and reusable heterogeneous catalysts for glycerol valorization.
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