Strong Electronic Pt‐Carbide Interaction Boosted CO₂ Hydrogenation to CO

Abstract Tunning the metal‐support interaction is a common strategy to regulate the electro and geometric structure of supported metal; However, most of supports were limited to oxides and how the carbides tune the activity of supported metal in CO 2 hydrogenation is still elusive. Herein, Pt nanoparticles dispersed on carbides were fabricated and examined in CO 2 hydrogenation to CO. Among the carbides (ZrC, SiC, WC, and TiC), Pt nanoparticles supported on ZrC showed the best catalytic activity with the CO 2 conversion of up to 37% and with 99% selectivity towards CO. It also displayed decent stability in the time‐on‐stream for 60 h. The mechanistic study indicated the strong metal‐carbide electronic interaction enabled the electron transfer from ZrC to Pt nanoparticle in the Pt/ZrC catalysts. The modulation of Pt electronic structure tuned the adsorption configuration of CO 2 and H 2 thus, enhancing the catalytic performance of Pt nanoparticles in CO 2 hydrogenation to CO. This work demonstrates the importance of carbides in modulating the electronic structure of supported metals.