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US 11,078,578 B2Granted
System and method for electrochemical separation of oxygen
AssigneePalo Alto Research Center Incorporated
InventorsDivyaraj Desai, Jessica Louis Baker Rivest
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Abstract
A system comprises a first electrode, an electrolyte membrane, and a second electrode. The first electrode is configured to reduce oxygen in a gas to an oxygen carrier ion at an intermediate temperature. The electrolyte membrane is configured to transport the oxygen carrier ion, and the second electrode is configured to oxidize the oxygen carrier ion to an oxygen molecule. Oxidation of the oxygen molecule consumes less than four electrons.
Claims19
A system, comprising:
- a first electrode configured to reduce oxygen in a gas to an oxygen carrier ion at an intermediate temperature equal to or above 100° C. and equal to or less than 300° C.;
- an electrolyte membrane configured to transport the oxygen carrier ion;
- and
- a second electrode configured to receive the oxygen carrier ion and oxidize the oxygen carrier ion to an oxygen molecule, wherein oxidation of the oxygen molecule consumes less than four electrons.
1 more element
A method comprising:
- receiving an input gas comprising oxygen;
- contacting the gas with a first electrode of an electrochemical cell to reduce the oxygen to an oxygen carrier ion;
- transporting the oxygen carrier ion across the cell through an electrolyte membrane;
- oxidizing the oxygen carrier ion to form an oxygen molecule at a second electrode of the electrochemical cell;
- and
- discharging an output oxygen gas,
- wherein the method is performed at an intermediate temperature, equal to or above 100° C. and equal to or less than 300° C., and consumes less than four electrons per oxygen molecule.
4 more elements
Dependencies are inferred from the claim text.