Yul Brown and Stanley Meyers both did work on elastically vibrating H2O electrically until it separated into H and O. They both claim inventions that modify water or separate water with less than the energy though to be required do do such a thing. If you search their names with a good search engine you will likely find more info. One of these guys, I think it was Brown, was on network TV news. He placed a bar of radioactive material in a clear liquid next to a radioactivity monitor. Within seconds the levels dropped way down and stayed down when the material was removed.