The electrolytic splitting of saline water is a highly desirable and sustainable method for the mass production of green hydrogen, but seawater contains many impurities that hinder the long-term stability of conventional electrolysis systems. A method for enabling the electrolysis of seawater has been developed that addresses previous side-reaction and corrosion problems.

Read more the story here:   https://www.nature.com/articles/d41586-022-03601-y