Seawater-splitting system could scale-up renewable hydrogen production

Saltwater could be used to produce green hydrogen using a system that combines electrochemical water splitting with forward osmosis. The approach could allow up-scaling of hydrogen fuel production using the planet’s predominantly salty natural water sources without pre-treatment or purification.

Using solar energy to electrochemically split water into oxygen and hydrogen, akin to how plants photosynthesise, shows much promise for renewable energy. The hydrogen that’s liberated can then be mixed with carbon dioxide to make hydrogen fuels.