The conversion of CO 2 into CO is an important step in CO 2 utilization to achieve clean fuels and value-added chemicals. Herein, we explored the pyrolysis of zeolitic imidazolate framework-8 (ZIF-8) loaded with different amounts of Ni 2 + to obtain NiÀ Zn carbide (Ni 3 ZnC) embedded in N-doped carbon. Ni is present in the intermetallic compound, while Zn excess remains on the N-doped carbon. The Ni 3 ZnC phase catalyzes the selective hydrogenation of CO 2 into CO via the reverse water gas shift reaction, reaching 100 % CO selectivity at ~30 % CO 2 conversion at 450 °C and atmosphere pressure (CO 2 : H 2 = 1 : 4, GHSV = 30000 mL g cat À 1 h À 1 ). The methanation reaction of CO 2 / CO, which is usually favored over Ni catalysts, is suppressed. The selectivity to CO at the expense of CH 4 is related to the stability of chemisorbed CO in the Ni 3 ZnC surface, which is lower compared to Ni surfaces. The Ni 3 ZnC@NC catalyst is selective towards CO over a wide range of conditions, including high pressure, that is usually required for the conversion of CO to hydrocarbons and alcohols via the Fisher-Tropsch synthesis (FTS) process. Contrarily, a classical Ni/SiO 2 catalyst prepared by impregnation produces CH 4 under high pressure.

The Cover Feature shows the catalyst production process starting from a mixture of zeolitic imidazolate framework‐8 (ZIF‐8) and Ni2+ precursor, which is then pyrolyzed to yield the intermetallic Ni3ZnC catalyst. This intermetallic compound catalyzes the selective hydrogenation of CO2 into CO via the reverse water gas shift reaction pathway, while the most common methanation reaction pathway is suppressed, even at high pressure. The gain in selectivity is represented by the catalyst's being able to move the railway switch control towards CO. Image credit: Eliana R. de Almeida. More information can be found in the Full Paper by L. M. Rossi and co‐workers.