Why only hydrogen is regarded as fuel of future and not other elements?

Question

I have basic idea of working of hydrogen fuel cell but why just hydrogen? Isn’t there any better or maybe cheaper alternative?
(I know it’s bit complex for but I would appreciate your answers)

In: 346

Answer 1

Hydrogen is not the fuel of the future. You get less energy from burning hydrogen than it took to extract it from water.

And that’s a hard rule, as in the conservation of energy. There is no possible way of getting around this unless there’s an exception to the laws of thermodynamics.