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Highly efficient catalysts for CO2 hydrogenation to formic acid in water catalyzed by hydrophobic porous polymers containing stable metal-hydride.
- Source :
- Green Chemistry; 4/7/2024, Vol. 26 Issue 7, p4192-4198, 7p
- Publication Year :
- 2024
-
Abstract
- Although CO<subscript>2</subscript> hydrogenation to formic acid has been widely investigated, the design of highly stable and effective heterogeneous catalysts is a long-standing challenge due to the instability of the active intermediate in water. Herein, both theoretical and experimental results revealed that the active Ir-H species appearing in the CO<subscript>2</subscript> hydrogenation process can be easily hydrolyzed, resulting in the deactivation of the catalyst. Further research constructed a strategy to protect the active Ir-H species by utilizing a directlyknitted PNP-based catalyst (p-PNP-Ir) for CO<subscript>2</subscript> hydrogenation to formic acid. An unpredictable conversion (TON = 1.11 × 106) can be achieved using p-PNP-Ir in water, being 3.15 times higher than that using the monomer PNP-Ir. Besides, the solid catalysts can be easily recycled for at least 15 runs without activity loss, highlighting their potential for practical applications in industry. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 26
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 176524812
- Full Text :
- https://doi.org/10.1039/d3gc04727j