How do fuel cells generate power?
To break water into Hydrogen and Oxygen, you have to use electrolysis. This requires an electric current, and therefore some energy. This is because the two gases don't like being on their own, they have a higher energy state when they are alone. In chemistry most things will try to take the lowest energy state possible. If they had a higher state, they would want to fall back to the lower state. Kind of like doing a pull up, you would prefer to be in standing on the ground rather than holding yourself up. When you bring these two gases back in contact with each other over a platinum catalyst, that extra energy that they had when they were separate is released in the form of electricity. Hope this helps x
They generate power by passing hydrogen atoms/molecules through a certain membrane, in which the electrons are separated from the nucleus. The electrons for the electricity as they flow, and come back to the other side of the membrane which acts as a 'ground' in terms of electrical circuits. The hydrogen atoms then bond with oxygen which is supplied to form H2O, or water.
