Skip to main content
. 2020 Jun 10;11:2940. doi: 10.1038/s41467-020-16769-6

Fig. 5. Electrochemical performance in water splitting.

Fig. 5

a Schematic illustration of water splitting powered by electric energy, where an alkaline electrolyzer is constructed with nanoporous Co3Mo/Cu and EO Co3Mo/Cu electrodes as cathode and anode, respectively. b Polarization curves for electrocatalytic overall water splitting of the devices constructed with nanoporous Co3Mo/Cu and EO Co3Mo/Cu electrodes, nanoporous NiFe/Cu and EO NiFe/Cu electrodes, or Pt/C/Cu and Ir/C/Cu, in the aqueous electrolyte of 1 M KOH and 0.5 M NaCl. Inset: Comparison of current density at 1.65 V. c, Durability test of the electrolyzer constructed with nanoporous Co3Mo/Cu and EO Co3Mo/Cu electrodes at 1.65 V, comparing with that of the device assembled with Pt/C/Cu and Ir/C/Cu. Inset: Typical SEM images of nanoporous Co3Mo/Cu cathode and EO Co3Mo/Cu anode after durability test. Scale bar: 400 nm. d Comparison of working voltage of nanoporous Co3Mo/Cu-based alkaline electrolyzer at the current density of 100 mA cm−2 with the values of the ones reported previously.