Fig. 6: The origin of the fast Na+ transport kinetics of the V2O5/V2CO2p. | Nature Communications

Fig. 6: The origin of the fast Na+ transport kinetics of the V2O5/V2CO2p.

From: Pushing the limit of layered transition metal oxides with heterolattice oxygen-mediated redox for capacitive deionization

Fig. 6: The origin of the fast Na+ transport kinetics of the V2O5/V2CO2p.The alternative text for this image may have been generated using AI.

XPS profiles for V2O5/V2CO2p; from top to bottom, the spectra collected for the pristine sample and the samples charged to 0.4 V, 0.6 V, and 0.8 V, discharged to 0.5 V, 0.2 V, 0 V, −0.2 V, and −0.4 V, and charged for a second time to 0.8 V. a O 1s, b V 2p and c N 1s. d–f Na+ diffusion pathways and corresponding migration activation energies.

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