Nonetheless, past potentials of 0.5 V, the pH does increase within the AEL. Past this potential, the concentration of dissolved CO2 decreases significantly due to equilibrium reactions with waterdissociation-generated OH -and is essentially entirely consumed within the AEL. Concurrently, HCO3 -is consumed to form CO3 2-, so the concentration of HCO3 -in the AEL decreases, and that of CO3 2-increases at high applied potentials. Once essentially all of the HCO3 -in the AEL has been consumed (V > 0.7 V), the pH in the AEL increases much more rapid, and the generated OH - leaves the BPM and reacts with HCO3 -anions in the anolyte. While the concentration of HCO3 - in the AEL tends to zero at 1.0 V of applied potential, the concentration remains near the bulk concentration in the electrolyte, demonstrating that there is an abundance of reactive (bi)carbonate to consume water-dissociation-generated OH -anions. It is important to note that while in-situ CO2 regeneration on the cathode side occurs at the CEL|cBL interface due to exclusion of (bi)carbonates from the CEL, the regeneration of the CO3 2-sorbent from the HCO3 - occurs within the entirety of the AEL, CL, and anolyte domains. Because HCO3 -can exchange into the AEL and CL, the direct field-enhanced dissociation of HCO3 -anions in the CL, as well as the reaction of HCO3 -with water-dissociation-generated OH -throughout the CL, AEL, and anolyte, regenerate the CO3 2-carbon capture sorbent.