How to get Hydrogen fuel from Seawater?

Stanford researchers have devised a way to generate hydrogen fuel using solar power, electrodes and saltwater from San Francisco Bay. They demonstrate a new way of separating hydrogen and oxygen gas from seawater via electricity. Existing water-splitting methods rely on highly purified water, which is a precious resource and costly to produce.

Interesting! it seems adding the negatively charged nickel sulphide coating to the anode was a game changer, giving much better results in yielding more free hydrogen ions without corrosive rusting, otherwise the whole thing was just another sea-water electrolysis experiment which has been around for centuries.