Thermal neutrons investigation of materials for hydrogen storage

Thermal neutron scattering is a well-established technique, in the field of hydrogen and hydrogen-storage materials, both from the fundamental and the applied points of view. Thanks to neutron scattering techniques it is possible, in general, to answer two fundamental questions at the microscopic level: 1) where are the hydrogen atoms? 2) what are hydrogen atoms doing? In this presentation, I will review the most relevant characteristics of hydrogen(s) in the framework of thermal neutron scattering techniques, namely diffraction and spectroscopy, and how, from the experimental results, it is possible to gain information on the microscopic structural properties of hydrogen-containing materials and their dynamics.