I saw recently a new article about some kind of PEC cell immersed in water which could separate water into hydrogen and oxygen. (It was news because they found a way to protect the cell from immediate corrosion damage) It seemed that somehow the scientists had designed a cell that could put the hydrogen in one place and oxygen in another place. If this is true, how could they have the gasses go to different places? Any ideas? I will look for the original paper but I doubt i will get access to it.