Operando synchrotron-FTIR spectroscopic study of electrochemical direct air carbon dioxide capture (2026)
Abstract
Direct air capture (DAC) of CO2 with green electrochemical method is a promising mitigation strategy. However, it faces challenges due to the ultradilute CO2 concentration and the high presence of O2. This project aims to selectively capture CO2 from air using carbon electrodes, and will address the challenges by answering three key questions: 1) How would electrodes capture CO2? 2) How would the O2 affect CO2 uptake? 3) How can we eliminate any side effects of O2. Operando synchrotron-FTIR microspectroscopy will reveal key intermediates in this capture process. Outcomes will guide the design of advanced electrode and system for DAC.
