Effective activation of CO is a prerequisite for efficient utilization of CO in organic synthesis. Precisely controlling the interfacial events of solids shows potential for activation. Herein, defect-enriched CeO with constructed interfacial frustrated Lewis pairs (FLPs, two adjacent Ce···O) effectively activates CO via the interactions between C/Lewis basic lattice O and the two O atoms in CO/two adjacent Lewis acidic Ce ions. Selective cyclic carbonate production from a catalytically tandem protocol of olefins and CO is used to demonstrate FLP-inspired CO activation.
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