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. 2020 May 1;11:2129. doi: 10.1038/s41467-020-15993-4

Fig. 6. The electrochemical properties of the photoanodes.

Fig. 6

a The photocurrent density of (black) TiO2 and (red) Li-TiO2 under chopped light. b The photocurrent of TiO2 photoelectrode as a function of the duration of Li-ion or Na-ion insertion process. c Comparison of the charge separation efficiency of TiO2 and Li-TiO2 photoanodes estimated in electrolyte of 0.5 M Na2SO4 + 0.5 M H2O2 solution. d Charge transfer resistance (filled dot) and capability (empty dot) of TiO2 (black square) and Li-TiO2 (red circle) photoanodes.