Hydrogenation properties of Hf-Ni intermetallics - Experimental and theoretical investigation

► Hydrogen absorption kinetics for HfNi and Hf2Ni7 at the 1 bar pressure was examined. ► Maximal H/M values are 1.05 and 0.04 for HfNi and Hf2Ni7 respectively, at 373 K. ► DFT calculations are performed for Hf2Ni7. ► Hydrogen storage in Hf-Ni intermetallics is discussed in relation to DFT results.