Fig. 3: Electrochemical analysis of POMs-based redox mediators. | Nature Communications

Fig. 3: Electrochemical analysis of POMs-based redox mediators.

From: Tunable multi-electron redox polyoxometalates for decoupled water splitting driven by sunlight

Fig. 3

The cyclic voltammetry of 5 mM a, {P2W18}, b, {P2W17V} and c, {P2W15V3} in 1 M Na2SO4 (pH=3) at different scan rates (j represents current density); reduction and re-oxidation via bulk galvanostatic electrolysis of 5 mM d, {P2W18}, e, {P2W17V} and f, {P2W15V3} in 1 M Na2SO4 solution (25 mL, pH = 3, electrochemical cell resistance value: 125 ± 5 mΩ) at current density of 3 mA cm−2.

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