Fig. 7: Selectivity, output water quality, and cell stability in long-term cycling. | npj Clean Water

Fig. 7: Selectivity, output water quality, and cell stability in long-term cycling.

From: Long-lasting, monovalent-selective capacitive deionization electrodes

Fig. 7

a Measured water separation factor and Coulombic efficiency for 1000-cycle experiment at 1.2 V and 6 min FCT, S–P cell. Inset: product water SAR and conductivity. b Comparison of Cl− adsorption capacity for long-term CDI cycling experiments in this and other works27,28,29,57,85,86,87,88,89. Marker position on the vertical axis indicates initial Cl− capacity, and color indicates the percentage of retained Cl− adsorption capacity at the final cycle.

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