Microwave Synthesis of Transition Metal (Fe, Co, Ni)-Supported Catalysts for CO2 Hydrogenation

To improve the efficiency of CO2 hydrogenation, it is essential to develop new catalysts as well as new methods of producing them. In our work, we propose a new Fe-, Co-, Cu-containing catalyst preparation technique based on depositing the active component through urea hydrolysis using microwave heating. We also compare catalysts produced with microwave synthesis to samples obtained through traditional synthesis methods, including impregnation and thermal deposition. The obtained catalysts were characterized by XRD, low-temperature N2 adsorption, SEM., and UV-VIS methods. The catalytic properties of the catalysts depend not only on the nature of the active component, but also on the preparation method. The best results for CO2 hydrogenation were achieved with Ni-containing catalysts produced by the impregnation method and microwave synthesis.