In 2022, Hemmatifar showed a stackable bipolar cell capturing at 400 ppm with electrical work of ~0.7 MWh/t while maintaining >90% efficiency[1]. They even ran it continuously for 100+ hours without fouling issues.
That citation also only shows release of CO2 at similarly dilute concentrations. A bigger difference between absorption and release concentrations obviously tends to require more energy.
That citation also only shows release of CO2 at similarly dilute concentrations. A bigger difference between absorption and release concentrations obviously tends to require more energy.
poly(vinylanthraquinone) + carbon nanotube electrodes aren’t particularly cheap.
When such devices have shown a good cycle life, that’s in a lab with pure materials, not in open air with its dust and various organic compounds.