Incorporation of Chromophores into Metal–Organic Frameworks for Boosting CO2 Conversion

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The exploitation of highly stable and active catalysts for the conversion of CO 2 into valuable fuels is desirable but is a great challenge. Herein, we report that the incorporation of chromophores into metal–organic frameworks (MOFs) could afford robust catalysts for efficient CO 2 conversion. Specifically, a porous Nd(III) MOF ( Nd-TTCA; TTCA 3– = triphenylene-2,6,10-tricarboxylate) was constructed by incorporating one-dimensional Nd(CO 2 ) n chains and TTCA 3– ligands, which exhibits a very high stability, retaining its framework not only in the air at 300 °C for 2 h but also in boiling aqueous solutions at pH 1–12 for 7 days. More importantly, Nd-TTCA has achieved a 5-fold improvement in photocatalytic activity for reducing CO 2 to HCOOH and a 10-fold improvement in catalytic activity for the cycloaddition of CO 2 into cyclic carbonate in comparison to those of H 3 TTCA itself. This work gives a new strategy to design efficient artificial crystalline catalysts for CO 2 conversion.