Hmm. Has been discussed before im sure - but like alot of "good " ideas - if it actually worked, surely it would exist and be in use now ? Pure oxygen is highly flammable i have been told so it probably couldnt be used anyway. Also , a compressed canister of "air" - the air inside converts to atmospheric pressure ( IE 0 psi) once it is released from the enclosure SO this would also be useless. The point of a turbine ( in a supercharger or turbocharger) is to compress air into the induction cycle - achieving that which probably is impossbile with compressed air canister induction.

Correct me if wrong im just talkign out of my arse.