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I have always thought that fuel such as petrol, diesel, etc.. are getting burnt to move the pistons in the car (I am not bringing physics). Why not hydrogen be used as a fuel but I know the incident about the Hindenburg disaster but the same thing could happen if the Hindenburg was filled with petrol. So both are combustible and that's what we want. Petrol and hydrogen do the same job what does he want?. When hydrogen is burnt there won't be any smoke so it saves the environment. PS: This is just to make this question a bit understandable I have mentioned the word "Alone" in the question.

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marked as duplicate by Pritt Balagopal, Mithoron, jerepierre, Todd Minehardt, Jon Custer Jul 11 '17 at 16:54

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  • $\begingroup$ Hydrogen-powered cars exist. The energy density of petrol is higher than hydrogen and hydrogen is more difficult to store safely which why we use petrol and diesel. $\endgroup$ – Waylander Jul 11 '17 at 14:01
  • $\begingroup$ Hydrogen-powered cars exist?? I never knew about that @Waylander. $\endgroup$ – Karthik Srivijay Jul 11 '17 at 14:03
  • $\begingroup$ But @Waylander Hydrogen is abandoned around the world! $\endgroup$ – Karthik Srivijay Jul 11 '17 at 14:04
  • $\begingroup$ Hydrogen alone can't be used as a fuel, you need an oxidizer like Oxygen, or Nitrous Oxide. But, of course, you might've assumed it, and not mentioned in the question. $\endgroup$ – Pritt Balagopal Jul 11 '17 at 14:07
  • $\begingroup$ I will of course assumed it but anyways thanks @PrittBalagopal $\endgroup$ – Karthik Srivijay Jul 11 '17 at 14:08
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Hydrogen fuel cells which produce electricity from hydrogen and oxygen are over a hundred years old https://www.thoughto.com/hydrogen-fuel-cells1991799

The recently introduced Toyota Mirai runs off a hydrogen fuel cell. www.toyota.co.uk/mirai as does the Hyundai ix35 and Honda Clarity

There aren't very many hydrogen filling stations in the UK which rather limits its appeal

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    $\begingroup$ You should try to improve your answers: make links, elaborate, maybe add pictures and stuff. They seem rather comment-like. $\endgroup$ – Mithoron Jul 11 '17 at 15:48

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