• Photoelectrolysis is the generation of electricity using photovoltaic cells to split water molecules.
  • This technique is still in the research stage, but appears to be a very promising source of power in the future.
  • The electrolytic cell consists of a pair of platinum electrodes immersed in water to which a small amount of an electrolyte such as H2SO4 has been added.
  • At the anode, water is oxidized to oxygen gas and hydrogen ions, and at the cathode water is reduced to hydrogen gas and hydroxide ions.
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