Task-specific ionic liquid-derived system for selective oxygen production

An energy conversion system comprising:

• a unit operation vessel;
• an inlet of the vessel by which an inlet stream comprising molecular oxygen flows into the unit operation vessel;
• a plurality of mesoporous silica particles contained within the unit operation vessel, each of the plurality of mesoporous silica particles being loaded with an oxygen selective ionic liquid comprising:
• at least one first heterocyclic portion including an aminoxyl radical;
• and
• an ionic portion connected to at least one heterocyclic portion,
• wherein the molecular oxygen of the inlet stream contacts the oxygen selective ionic liquid within the unit operation vessel, and
• wherein, upon contact, the molecular oxygen binds to the oxygen selective ionic liquid at the aminoxyl radical under a first set of conditions;
• and
• an outlet of the vessel by which an outlet stream flows out of the unit operation vessel.