What about producing oxygen via electrolysis from distilled water:
Electrolysis of water - Wikipedia, the free encyclopedia
Would oxygen produced that way have argon too in real life?
I believe this process is used in home fuel depots for Honda fuelcell cars. Principle is simple at least... Oxygen is byproduct. I was thinking this because I plan to fit a sailboat for a loooong journey and it would provide energy for cooking or fuelcell as well as gas for diving
Oxygen would have to bagged with compressor of course which might be an invitation for a disaster....
Pacific ocean is vast and O2 supply depots far apart (or so I imagine)
--- Kari K