Efficient fixation of CO2 at mild conditions by a Cr-conjugated microporous polymer

We reported a bifunctional material, Cr-salen implanted conjugated microporous polymer (Cr-CMP), which is able to capture excellent CO2 amounts and has a remarkable catalytic activity towards the cycloaddition reaction of CO2 to epoxides forming cyclic carbonates at mild conditions without additional solvents. This heterogeneous Cr-CMP catalyst has a superior catalytic activity to its related homogeneous catalyst and can be reused more than ten times without a significant decrease in catalytic activity.

Graphical AbstractA Cr-salen implanted conjugated microporous polymer (Cr-CMP) can capture excellent CO2 amounts and catalyze the cycloaddition reaction of CO2 to form cyclic carbonates under mild conditions without additional solvents.Figure optionsDownload full-size imageDownload as PowerPoint slide