This line of research integrates activities of discovery, design and validation of advanced materials for the production and use of hydrogen in systems operating at low temperatures, with particular attention to the reduction or elimination of Critical Raw Materials (CRM). The approach covers the entire development chain, from theoretical modeling of materials to their integration into photoelectrochemical and electrochemical devices.
The activity includes the computational study of photocatalysts free of transition metals or rare earths, such as g-C₃N₄ and related materials, with analysis of optical properties and exciton dynamics, in order to identify new classes of materials for solar hydrogen production. In parallel, photoelectrochemical systems (PECs) integrated with solar concentrators will be developed, based on stable and scalable photoanodes (Fe and W oxides, Ta nitrides) functionalized with co-catalysts, including artificial photosynthesis approaches in waters containing organic compounds and in-operando diagnostics for the study of reaction mechanisms.
In continuity, the research line addresses the development of advanced catalysts for AEM and PEM cells, with a focus on high-entropy oxides and alloys (HEOs/HEAs), deposited mainly by PVD techniques. The ALD technique will also be explored as a potential advanced technology for this area. The activity includes the ab initio modeling of reaction mechanisms, the design of functional coatings with high adhesion and durability, the development of anti-cross-over layers with low PGM content and the definition of accelerated test protocols (AST) for the evaluation of cell degradation and useful life.