Imaging of an operating LaNi4.8Al0.2–based hydrogen storage container

Neutron radiography analysis of a hydride-based hydrogen storage system

“…This effect is a consequence of the heat transmitted by the metal structure of the HFM container which dehydrides the material in contact with the walls. This is in agreement to what was observed by Gondek et al [13] for the hydriding process: heat transport by the metal walls accelerates the reaction of the material in contact with them. Another visible effect is the contraction experimented by the material as the dehydriding process advances.…”

“…A particularly interesting example of NI applied to the study of HFM is the work of Gondek et al [13] which presents a step-by-step observation of the hydride formation process in an AB 5 alloy inside a container. The images show that hydriding occurs first near the container walls, thanks to the higher heat conduction of Al in comparison to the powder.…”

The Influence of Cerium on the Hydrogen Storage Properties of La1-xCexNi5 Alloys

“…This has already been extensively studied and presented in the literature. As the most significant examples, lanthanum or nickel can be substituted with Ce [14,15], Pr [16], Fe [17], Zn [18], Ga [19], Al [20,21], Nd [22], Co [23], Sn [24] and many others, which influences the kinetics of the reaction, cycling stability, equilibrium pressures and susceptibility to surface contamination [25]. Different attempts to modify the properties were also made, including mechanical alloying and plastic deformation [26,27].…”

Neutrons for industry

“…For applications where a relatively slow charging of the tank (2 h) is permissible, as for stationary large scale storages, hydrogen solid-state storage is an interesting alternative due to its low pressure operation and binding of the hydrogen in a safe chemical form [35][36][37].…”