Fig. 4: Photothermal-promoted Catalytic performance of catalysts in alkaline seawater. | Nature Communications

Fig. 4: Photothermal-promoted Catalytic performance of catalysts in alkaline seawater.

From: Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst

Fig. 4: Photothermal-promoted Catalytic performance of catalysts in alkaline seawater.

a HER polarization curves and (b) corresponding Tafel plots for NiMoO4·xH2O, NiMo-Air, NiMo-H2, and Pt/C catalysts and Ni foam in 1 M KOH seawater under simulated one sun irradiation. J is the current density. c Arrhenius plots for NiMo-H2 in 1 M KOH seawater electrolyte. d Turnover frequency (TOF) curves for the NiMo-H2 in 1 M KOH, 1 M KOH seawater, and 1 M KOH seawater under simulated one sun irradiation. e HER polarization curves for the NiMo-H2 catalyst before CV cycling and after different numbers of CV cycles in 1 M KOH seawater under simulated one sun irradiation. f HER polarization curves for NiMo-H2 in 6 M KOH seawater under simulated one sun irradiation before and after long-term durability testing for 540 h. g Chronopotentiometric curve for NiMo-H2 at a constant current density of 500 mA cm−2 in 6 M KOH seawater under simulated one sun irradiation. Source data are provided as a Source Data file.

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