Conclusions
These results constitute a preliminar study of a wider investigation concerning other material types, however some interesting final consideration can already be drawn.
The data obtained from magnetisation measurements are not completely in agreement with the data obtained from XRD patterns: in fact using the concentration dependence of the lattice parameter reported in ref 12 as a reference trend the estimated H content should be higher (for the samples with hydrogenation times t> 5 h) than the value obtained from magnetisation measurements.
XRD data are affected from structure deformation and are therefore less reliable than the data obtained through magnetisation measurements.
Reliable electrochemical hydrogenation of the IMCs can be performed once ensured that reactions in the electrolytic solution do not occur. However optimisation of the electrochemical parameters has to be carefully made.
A more detailed electrochemical characterisation will follow the presented results. Especially charge/discharge cycles and P-C isotherm measurements to electrochemically determine hydriding level and charge efficiency will be performed.