Fig. 3: MEA-FR electrolyzer performance. | Nature Communications

Fig. 3: MEA-FR electrolyzer performance.

From: Full runner electrolyzer stack for industrial-current-density NOx−-mediated ammonia synthesis from air and water

Fig. 3

a Comparison of cell voltage of different combinations at varied current densities. All voltages are reported without iR correction. b FE of NH3, NO2−, and H2 versus current density with 1 M KOH containing 0.1 M NO3− as influent. c Current density-depended NH3 FE with different concentrations of NO3− as influent using MEA-FR. d FE of products versus current density under 0.1 M KOH. e Monitored O2 evolution in MEA-SR (up) and MEA-FR (down) under a current density of 500 mA cm−2. f Comparison of cost per kg of NH3 production using MEA-SR and MEA-FR under different current densities. g Schematic of reaction mechanism within the MEA-FR design. The error bars represent the standard deviation from three independent measurements. Source data are provided as a Source Data file.

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