Absorption and desorption of hydrogen in TiCrMnFeRE: experiments, characterization and analytical interpretation using statistical physics treatment.

In this work, the absorption and desorption isotherms of hydrogen on TiCrMnFeRE (RE = La, Ce, Ho) metals were collected at three temperatures under the same experimental conditions. This was carried out in order to determine the rare earth effect on the hydrogen storage performance of the TiCrMnFe metal. The equilibrium data showing the hydrogen absorbed/released amounts per unit of absorbent mass have provided useful details to describe the absorption/desorption processes.