Fig. 4: Flow-cell assessment of NiFe LDH/NF with PF₆⁻ additives. | Nature Communications

Fig. 4: Flow-cell assessment of NiFe LDH/NF with PF₆⁻ additives.

From: Hexafluorophosphate additive enables durable seawater oxidation at ampere-level current density

Fig. 4

a Schematic of the flow electrolytic cell with asymmetric seawater feed. b Polarization curves of NiFe LDH/NFPt/C/NF and RuO₂/NFPt/C/NF without iR correction, with energy consumption values indicated for NiFe LDH/NFPt/C/NF. c Chronopotentiometry curve at a j of 1.0 A cm−2 for NiFe LDH/NFPt/C/NF. Inset shows a photograph of two electrode electrolyzer. d Comparison of cell voltages and long-term electrolysis tolerance for NiFe LDH/NF with PF₆⁻ additives against recently reported ASO catalysts. Source data are provided as a Source Data file.

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