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Explain hydrogen economy....

Explain hydrogen economy.

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It refers to the use of dihydrogen as an alternative source of energy. The basic principle of Hydrogen economy is storage and transportation energy in the form of dihydrogen, instead of fossil fuel or electric power.
Obstacles of hydrogen economy
The problems faced in considering hydrogen as fuel are
i. Availability of dihydrogen since hydrogen is not found in free state in abundance.
ii. Storage and transportation : Hydrogen gas being highly inflammable its storage and transportation causes many problems. A better solution for this problem is to use liquid hydrogen as fuel. A still better and safe way of storage and transportation of hydrogen is, making the use of metal alloys like Fe- Ti, `Na-Ni_(5)` to absob hydrogen. Hydrogen absorbed by these alloys can be released on heating.
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