CeO2-based heterogeneous catalysts toward catalytic conversion of CO2

Abstract

The catalytic conversion of CO₂, which has recently attracted considerable attention, would not only contribute to the alleviation of environmental problems but would also provide useful chemicals (e.g., methane and methanol). Due to the thermodynamic stability of CO₂, developing highly efficient and cost-effective catalysts is the main challenge with respect to large scale production. CeO₂-based materials have aroused increasing research interest as supports or catalysts toward CO₂ conversion. By virtue of the unique structural properties resulting from oxygen vacancies and reversible valence change (Ce⁴⁺ and Ce³⁺), CeO₂ exhibits great potential as a support to immobilize catalytically-active species or even as an active site to activate the oxygen-containing bond in catalytic reactions involving CO₂. In this review, the latest advances in the design, preparation and application of CeO₂-based heterogeneous catalysts toward CO₂ conversion are summarized.