The main goal of the proposed experiments is to determine the structure and evolution of phases in novel Co-CeO2 catalysts prepared by flame-spray pyrolysis. These materials are promising catalysts for direct hydrogenation of CO2 to C2+ hydrocarbons. Operando XRD and PDF experiments during H2-TPR and reaction in CO2+H2 mixture will be performed. The investigation of the structural properties of Co-CeO2 formed in the course of reduction will allow establishing the structure-activity relationship for this promising catalytic system. This information is necessary to identify the role of active Co-sites and support. Overall these experiments will be instrumental in designing the next generation of active and cost-efficient catalysts for CO2 hydrogenation into value-added C2+ hydrocarbons.