Platinum and Frustrated Lewis Pairs on Ceria as Dual‐Active Sites for Efficient Reverse Water‐Gas Shift Reaction at Low Temperatures

The low‐temperature reverse water‐gas shift (RWGS) reaction faces the following obstacles: low activity and unsatisfactory selectivity. Herein, the dual‐active sites of platinum (Pt) clusters and frustrated Lewis pair (FLP) on porous CeO 2 nanorods (Pt cluster /PN−CeO 2 ) provide an interface‐independent pathway to boost high performance RWGS reaction at low temperatures. Mechanistic investigations illustrate that Pt clusters can effectively activate and dissociate H 2 . The FLP sites, instead of the metal and support interfaces, not only enhance the strong adsorption and activation of CO 2 , but also significantly weaken CO adsorption on FLP to facilitate CO release and suppress the CH 4 formation. With the help of hydrogen spillover from Pt to PN−CeO 2 , the Pt cluster /PN−CeO 2 catalysts achieved a CO yield of 29.6 %, which is very close to the thermodynamic equilibrium yield of CO (29.8 %) at 350 °C. Meanwhile, the Pt cluster /PN−CeO 2 catalysts delivered a large turnover frequency of 8720 h −1 . Moreover, Pt cluster /PN−CeO 2 operated stably and continuously for at least 840 h. This finding provides a promising path toward optimizing the RWGS reaction.