| abstract |
A device controls levels of carbon dioxide and water in a controlled environment. The device (10) comprises a first electrode chamber, which receives an input fluid (A) comprising first concentrations of carbon dioxide and water and is configured to deliver a first output fluid (B) having concentrations of carbon dioxide and water lower than the first concentrations to a first environment (12), and a second electrode chamber having an outlet configured to deliver a second output fluid (C) having third concentrations of carbon dioxide and water to a second environment (20). A reduction catalyst layer in the first electrode chamber reduces carbon dioxide and water in the input fluid to form ionic carrier species, an ion-transporting membrane is positioned between the first and second electrode chambers and comprises carrier species, and an oxidation catalyst layer in the second electrode chamber oxidizes the ionic carrier species to form carbon dioxide and water. |