Electrochemically mediated gas capture, including from low concentration streams
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United States of America
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Apr 1, 2025
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Jun 15, 2023
app pub date -
Jan 30, 2023
filing date -
Jan 30, 2023
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Abstract
Methods, apparatuses, and systems related to the electrochemical separation of target gases from gas mixtures are provided. In some cases, a target gas such as carbon dioxide is captured and optionally released using an electrochemical cell (e.g., by bonding to an electroactive species in a reduced state). Some embodiments are particularly useful for selectively capturing the target gas while reacting with little to no oxygen gas that may be present in the gas mixture. Some such embodiments may be useful in applications involving separations from gas mixtures having relatively low concentrations of the target gas, such as direct air capture and ventilated air treatment.
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