CO2 Transformation by Synergistic Catalysis

CO2 Transformation by Synergistic Catalysis

Author: Chemistry – An Asian Journal

Integrating multiple reactive sites into a composite material with a confined nanospace could allow researchers to build  nanoreactors that catalyze reactions. However, this can be challenging.

Cheng-Peng Li, Miao Du, Tianjin Normal University, China, and colleagues have synthesized a composite material by the encapsulation of an ionic manganese metalloporphyrin into a porous zeolitic imidazolate framework (ZIF-8). The hybrid catalyst was formed by introducing the porphyrin during the synthesis of ZIF‐8 in dimethylformamide (DMF) at 140 °C. The resulting composite can serve as a heterogeneous catalyst for the solvent-free synthesis of cyclic carbonates from CO2 and epoxides without any co-catalyst.

The catalytic performance for the chemical transformation of CO2 is enhanced by the confinement of the ionic metalloporphyrin in the structure’s cavities (pictured). The composite material is stable and can be easily separated and reused with minimal loss of catalytic performance.


 

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