CO₂ Loss into Solution: An Experimental Investigation of CO₂ Electrolysis with a Membrane Electrode Assembly Cell.

ABSTRACT: In pursuit of commercial viability for carbon dioxide (CO₂) electrolysis, this study investigates the operational challenges associated with membrane electrode assembly (MEA)-type CO₂ electrolyzers, with a focus on CO₂ loss into the solution phase through bicarbonate (HCO₃ ^-) and carbonate (CO₃ ^2-) ion formation. Utilizing a silver electrode known for selectively facilitating CO₂ to CO conversion, the molar production of CO₂, CO, and H₂ is measured across a range of current densities from 0 to 600 mA/cm², while maintaining a constant CO₂ inlet flow rate of 58 mL/min. The dynamics of CO₂ loss are monitored through measurements of pH changes in the el

SUBMITTER: Liu W 

PROVIDER: S-EPMC11423278 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature