Water splitting

Water splitting is the general term for a chemical reaction in which water is converted into oxygen and hydrogen. Water splitting is actively researched because demand for cheap hydrogen is expected to rise with the new hydrogen economy.

Additional recommended knowledge

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Current water splitting methods include

• electrolysis
• thermolysis at 2500°C or above.

Active research

• thermochemical water splitting with the sulfur-iodine cycle
• water splitting by photocatalysis (artificial photosynthesis) ^[1]
• High-temperature electrolysis
• thermolysis on defective carbon substrates, thus making hydrogen production possible at temperatures just under 1000°C ^[2]

Water splitting also donates electrons to power the electron transport chain in photophosphorylation of photosynthesis. Various techniques for water splitting have been issued water splitting patents ^[3] in the United States.

References

See also

• Water gas shift reaction