Water split with nano alu powder

[pomodoro]

I doubt the cost of Al is so cheap that using it as a consumable electrode makes any sense. The aluminate waste would also cause problems.

Regarding the easy chemistry, yes its a reaction between water and a metal. The bit about oxygen being made is a blatent lie. Nano particles are still massive , not of atomic size at all. Aluminum will react in the same way regardless of its size. The nano Aluminum must be kept under nitrogen for it could react violently with oxygen in the air. It is fine enough to react with water rather than form a protective layer and the reaction with water is reasonably fast. There is absolutely no catalysis of any kind , but fast kinetics due to the massive surface area per unit volume.
No room temp reaction with any metal and water will ever produce oxygen, the metals oxidize , while water gets reduced , thats the only reaction with negative Gibbs free energy, end of story,