Palladium particles dispersed on hollow structural support improve CO₂conversion

Abstract

Herein, an effective Pd/NHS catalyst has been designed and facilely synthesized with extraordinary CO2 fixation performance, which is superior to that of Pd/NS catalysts, owing to the hollow structures facilitating mass transfer and product release.

Recyclable N-Heterocyclic Carbene Porous Coordination Polymers with Two Distinct Metal Sites for Transformation of CO2 to Cyclic Carbonates

“…Heterogeneous catalysis plays an important role in various industrial transformations, including chemical processes using CO 2 as a feedstock. − The advantages of the heterogeneous catalysts, resulting from their recyclability and easy separation from the reaction media, undoubtedly contribute to the overall cost control of the process. However, the majority of the heterogeneous catalytic systems reported to date for the CO 2 cycloaddition to cyclic carbonates are typically operated under harsh reaction conditions with high pressure and temperature. ,,,− Moreover, heterogeneous catalysts typically serve as heterogeneous Lewis acid sites and require large amounts of additional nucleophiles to complete the entire catalytic cycle. This drawback is due to the inherent difficulty of combining both the Lewis acid site and nucleophilic site in a single-component catalyst, especially those catalysts in pure inorganic forms.…”