Fig. 3: Chemical properties and ion adsorption analysis of ONC-S and NC-G. | Nature Communications

Fig. 3: Chemical properties and ion adsorption analysis of ONC-S and NC-G.

From: Unveiling the neglected role of oxygen doping in nitrogen-doped carbon for enhanced capacitive deionization performance

Fig. 3

a XPS survey spectra of NC-G and ONC-S; (b) N 1s XPS spectrum of ONC-S; (c) ratios of various nitrogen configurations; top view of simulated models illustrating Na adsorption and corresponding adsorption energies (Eads) at (d) N-5, (e) N-6, and (f) N-Q sites in the NC model; (g) N-5, (h) N-6, and (i) N-Q sites in the ONC model; and (j) graphene model; (k) comparison of adsorption energies of various structural models.

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