I can do better than that!
Take some water. Mix in about a teaspoon of sodium hydroxide.
Chuck in the aluminum foil, it will bubble like crazy, and give off hydrogen.
Until the aluminum is consumed and you’re left with this toxic sludge type stuff that I would recommend you bury deep, deep in the ground.
As a matter of fact, I was doing better than that when I was in eighth grade or so...
This is not a catalyst.
Aluminum is very reactive if you powder it and don’t let the surface oxidize. When dumped into water it steals the oxygen off the water molecules and discards the hydrogen (and there are other ways to achieve the reaction).
A guy made patented a device that let an engine run on aluminum and water back in ‘82.
http://members.tripod.com/~anon99/water_engine/index2.html
This is interesting, but the energy put into making the aluminum is more than you get running the engine.