Fuel cells

  • Created by: Niki :)
  • Created on: 08-03-13 11:18

Hydrogen burns in air to form water: 2H2(g) + O2(g) --> 2H2O(l)

Small amounts of nitrogen oxides are also formed in a reaction between nitrogen and oxygen in the air at high temps.

How It Works:

  • Two electrodes are separated by a membrane, which allows H+ ions to pass through but not H2 and O2 molecules.
  • The electrons released by the reaction at the hydrogen electrode are used up at the O2electrode. The p.d. set up pushes electrons through the external circuit, where they do work.

Methanol-based fuel cells

Methanol is highly flammable, poisonous liquid alcohol, made…


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