In view of the emerging climate crisis reducing the carbon footprint has become pivotal. The direct catalytic valorization of CO2 from its diluted mixtures (atmosphere, flue gas, biogas, etc.) to valuable C1 molecules is the most straightforward solution, although it poses several unsolved scientific challenges. In this project a library of potentially game-changing catalysts for the direct hydrogenation of diluted CO2 to CO and CH4 will be designed in order to explore the direct utilization of lean CO2 streams. The research will focus on nanostructured transition metals particles supported on reducible oxides, possessing both high CO2 affinity and hydrogenation activity.