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What are metallic hydrides? Explain about it. |
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Answer» Solution :(i) METALLIC hydrides are obtained by hydrogenation of metals and alloys in which hydrogen occupies the interstitial sites (voids). Hence, they are called interstitial hydrides. (ii) The hydrides show properties similar to parent metals and hence they are also KNOWN as metallic hydrides. (iii) They are mostly non-stoichiometric with variable composition (`TiH_(1.5-1.8)`and `PdH_(0.6-0.8)`). (iv) Some are relatively light, inexpensive and thermally unstable which makes them useful for hydrogen STORAGE applications. Example, `TiH_(2)`, `ZrH_(2)`, `ZnH_(2)`. |
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