CO₂ Hydrogenation over Ni–Co/Ce0.6Zr0.4O₂ Catalysts for Light Hydrocarbons under Mild Conditions

This is the authors' abstract. We don't add key points for this paper.

High Resolution Image Download MS PowerPoint Slide Ni and Ni–Co metal nanoparticles supported on a Ce 0.6 Zr 0.4 O 2 support (denoted as Ni/CZ-C and NiCo/CZ-C) were tested for the hydrogenation of carbon dioxide under mild conditions. The NiCo/CZ-C catalyst demonstrated remarkable performance, significantly decreasing the reaction temperature (200 °C) and achieving high selectivity toward short-chain hydrocarbons, specifically ethane and butane. In situ studies using diffuse reflectance infrared Fourier transform spectroscopy allowed for the monitoring of the evolution of methane formation and the proposal of a reaction scheme. Both catalysts produce carbonate species, which are further hydrogenated to produce CH 4 . Notably, with the NiCo/CZ-C catalyst, additional hydrocarbons, such as ethane and butane, were also detected.