Direct Air Capture of Carbon Dioxide using an Electrochemical pH Swing
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Direct Air Capture of Carbon Dioxide using an Electrochemical pH Swing
PIs: Harry Atwater and Chengxiang (CX) Xiang
Research Team: Zachary Schiffer
Division of Engineering and Applied Science
Sunlight to Everything Initiative
2021 Explorer grant
Lowering the energy needed for direct-air capture of carbon dioxide is one of the key requirements to make carbon removal from the atmosphere cost-effective. This project will develop a carbon dioxide desorption cycle for a solvent-based direct air capture system for carbon dioxide, based on the pH-swing of an electrochemical cell operating at room temperature, which completely eliminates heating requirements and significantly reduces the energy consumption for direct air capture solvent regeneration.