- Metallic hydrides are obtained by hydrogenation of metals and alloys in which hydrogen occupies the interstitial sites (voids). Hence, they are called interstitial hydrides.
- The hydrides show properties similar to parent metals and hence they are also known as metallic hydrides.
- They arc mostly non-stoichiometric with variable composition (TiH1.5-1.8 18 and PdH0.6-0.8).
- Some are relatively light, inexpensive and thermally unstable which makes them useful for hydrogen storage applications.
Example, TiH2 , ZrH2 , ZnH2 .