NEST SPOKE 4 "Clean Hydrogen and Final Uses." - D4.3.2 Report on studied and optimal materials for hydrogen storage Technologies

This report describes the studied and optimal materials for hydrogen storage technologies completed in WP3 as of the time of publishing of the document. The tasks are related to the following topics: 1. Technologies for compressed hydrogen storage, management and distribution 2. Technologies for liquified hydrogen production, storage, management and distribution 3. Technologies for solid hydrogen storage, management and distribution 4. Technologies for hybrid hydrogen storage solutions 5. E-fuels solutions: renewable driven processes and reactor 6. Liquid and chemical H2 carriers solutions. The objective of this report on studied and optimal materials for hydrogen storage technologies is to highlight major innovations in terms of hydrogen storage materials. Up-to-date activities of materials studied and still under development within the various tasks will also be reported Lastly, the activities are propaedeutically in achieving the following milestones: 1. MS4.3.1, achieving efficiencies better than 3-5 %, with respect to weight, solid state hydrogen storage using novel materials with reduced critical raw materials (TRL3), 2. MS4.3.2, achieving high conversion efficiency, greater than 85%, and fast reaction kinetics for e-fuels, such as ammonia and liquid organic energy carriers, synthesis and dehydrogenation (TRL3).