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Updated: May 11, 2026
10:39
Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
Published on: August 23, 2018
A robust method to heterogenise and recycle group 9 catalysts
Stephanie J Lucas1, Benjamin D Crossley, Alan J Pettman
1iPRD, School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK.
Chemical Communications (Cambridge, England)
|May 16, 2013
Summary
Researchers developed a robust method to immobilize iridium-rhodium complexes for catalytic transfer hydrogenation. These recyclable materials show high effectiveness with minimal metal leaching, offering a sustainable catalytic solution.
Area of Science:
- Inorganic Chemistry
- Catalysis
- Materials Science
Background:
- Immobilization of homogeneous catalysts is crucial for efficient separation and recycling.
- Iridium-rhodium complexes are effective catalysts but often suffer from leaching issues.
- Developing robust immobilization strategies is key to sustainable catalysis.
Purpose of the Study:
- To present a viable, reproducible, and robust method for immobilizing hydroxyl-tethered iridium-rhodium complexes.
- To evaluate the effectiveness and recyclability of the immobilized complexes in catalytic transfer hydrogenation.
- To assess the extent of metal leaching during the catalytic process.
Main Methods:
- Synthesis of hydroxyl-tethered iridium-rhodium complexes.
- Immobilization of the complexes onto a solid support.
- Application of the immobilized catalysts in catalytic transfer hydrogenation reactions.
- Analysis of catalytic activity, recyclability, and metal leaching using techniques like ICP-MS.
Main Results:
- Successful immobilization of hydroxyl-tethered iridium-rhodium complexes was achieved.
- The immobilized catalysts demonstrated high effectiveness in catalytic transfer hydrogenation.
- Excellent recyclability of the materials was observed over multiple catalytic cycles.
- Minimal metal leaching was detected, indicating robust immobilization.
Conclusions:
- The developed method provides a robust and reproducible way to immobilize iridium-rhodium complexes.
- The immobilized catalysts are effective, recyclable, and exhibit low metal leaching, making them suitable for sustainable catalytic applications.
- This work contributes to the advancement of heterogeneous catalysis using precious metal complexes.
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