Fig. 4: Electrochemical curve (black), SPR power curve (red) and differential of light power (blue) versus the discharge stages. | Nature Communications

Fig. 4: Electrochemical curve (black), SPR power curve (red) and differential of light power (blue) versus the discharge stages.

From: Operando monitoring of ion activities in aqueous batteries with plasmonic fiber-optic sensors

Fig. 4

a–c 1 M ZnSO4 + 0.4 M MnSO4 aqueous electrolyte, d–f 0.4 M MnSO4 aqueous electrolyte. The P’/V relationship curve of the MO electrode during discharging at g 1 M ZnSO4 + 0.4 M MnSO4 and h 0.4 M MnSO4 aqueous electrolyte. i Galvanostatic discharge curve of the MO electrode at 1 M ZnSO4 + 0.4 M MnSO4 (black), 0.4 M MnSO4 (red) and 1 M ZnSO4 (blue) aqueous electrolyte, respectively.

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