The team "Catalysts for carbon free hydrogen carriers" aims to develop and investigate catalytic systems for the synthesis of carbon-free hydrogen carriers and the following H₂ release. Ammonia (NH₃) has a central role in this research line, due to its high hydrogen storage capacity and its potential use as fuel with no COx emissions. The first step in enabling NH₃ as a hydrogen carrier is the development of highly active catalysts for ammonia synthesis, that allow mild reaction conditions to enhance the sustainability of NH₃ production. In parallel, a catalytic system for NH₃ cracking is required to release H₂, with particular attention to the impact of impurities in the ammonia feedstock. Developing active and stable materials for both processes is crucial, as well as gaining a thorough understanding of these two catalytic systems. The team focuses on systems ranging from powder and shaped catalysts to open-cell metallic foams, along with new, innovative, synthesis methods for their preparation. Finally, new advanced spectroscopic methods are applied to study the electronic properties of the catalysts and their reaction kinetics.