Solid-state materials for hydrogen storage

Hydrogen (H2) is a promising replacement energy carrier and storage molecular due to its high energy density by weight. For the constraint of size and weight in vehicles, the onboard hydrogen storage system has to be small and lightweight. Therefore, a lot of research is devoted to finding an efficient method of hydrogen storage based on both mechanical compression and sorption on solid-state mate- rials. An overview of the current research trend and perspectives on materials- based hydrogen storage including both physical and chemical storage is provided in the present paper. Part of this chapter was dedicated to recent results on two innovative materials: hybrid materials based on manganese oxide anchored to a polymeric matrix and natural volcanic powders. A prototype H2 tank, filled with the developed hybrid material, was realized and integrated into a polymer elec- trolyte membrane (PEM) single fuel cell (FC) demonstrating the material capa- bility to coupling with the FC.