A voltage range of -1 to -2 V was then used to isolate anthraquinone redox activity and monitor electrochemically driven adsorption (Figure ). When the f-CMK-3 cell was charged to -2 V, a decrease in pressure (red line) is observed, indicating the capture of CO2. When the f-CMK-3 electrode is then discharged to 0 V, the pressure in the system increases owing to the release of CO2. The pressure oscillations are synchronous with the electrochemical charging and discharging, demonstrating that the reduction and oxidation of anthraquinone drive the capture and release of carbon dioxide. This cell voltage range shows that targeting Experiments ran was a constant current at 0.1 A g -1 then voltage was held for 10 mins. B) 0 to -1 V, pressuregreen line. C) -1 to -2 V, pressurered line. D) 0 to -2.5 V, pressureblue line.