sustainable option for synthetic fuel production and CO 2 valorization. It consists of two-step
process based on the creation of oxygen vacancies in non-stoichiometric oxides during
solar-driven thermal reduction, followed by the material re-oxidation with H 2 O and/or CO 2
to generate syngas (H 2/CO), the building block for a wide variety of synthetic hydrocarbon
fuels. In this work, a monolithic solar reactor was designed and tested integrating reticulated …