Unless they invented new physics/chemistry this has to be fake. It takes energy to remove hydrogen from water.

I checked the website and it shows a perpetual motion hydrogen fuel cell.
H20 -> 2 H+ + 0(2-)+ extracted energy -> 2 H+ + 0(2-) -> H20

Unless my chemistry is wrong there is extra energy in that equation from nowhere. The company says that there is no external energy input. Just add water to the catalyst fuel cell.

This is absolutely fake.