Fig. 3. The electrochemical properties of Mox-Ni0.85Se/MoSe2 catalyst. (a) Polarization curves. (b) The capacitive currents at −0.5 V vs. RHE as a function of the scan rate for the obtained catalysts. (c) Chronopotentiometry test results of the Mox-Ni0.85Se/MoSe2 catalyst at 20 mA cm−2 for 80 h (inset: LSV curves before and after 1000 cycles) in alkaline simulated seawater (1 M KOH + 0.5 M NaCl). (d) The electrochemical performance comparison between Mox-Ni0.85Se/MoSe2 and previously reported values obtained in alkaline simulated seawater, found in the literature .
