Green Mobility requires an integrated approach to the chain fuel/engine/emissions. The present project aims at ground breaking advances in the area of Green Mobility by (a) enabling the production of affordable, carbon-neutral, clean, solar fuels using exclusively renewable/recyclable raw materials, namely solar energy, water and captured Carbon Dioxide from combustion power plants (b) developing a highly compact, multifunctional reactor, able to eliminate gaseous and particulate emissions from the exhaust of engines operated on such clean fuels.The overall research approach will be based on material science, engineering and simulation technology developed by the PI over the past 20 years in the area of Diesel Emission Control Reactors, which will be further extended and cross-fertilized in the area of Solar Thermochemical Reactors, an emerging discipline of high importance for sustainable development, where the PI’s research group has already made significant contributions, and received the 2006 European Commission’s Descartes Prize for the development of the first ever solar reactor, holding the potential to produce on a large scale, pure renewable Hydrogen from the thermochemical splitting of water, also known as the HYDROSOL technology.