Fig. 3: Electrochemical characterization. | Nature Communications

Fig. 3: Electrochemical characterization.

From: Yttrium-doped NiMo-MoO2 heterostructure electrocatalysts for hydrogen production from alkaline seawater

Fig. 3: Electrochemical characterization.

a Polarization curves of NiMo/MoO2 and Y-NiMo/MoO2−x electrodes in 1 M KOH, b their corresponding Tafel plots, c the ratio of Δη/Δlog|j| at different current densities, d the Nyquist plots from electrochemical impedance spectroscopy measurements (inset shows the equivalent circuit). e The calculated TOF curves. The black dotted line represents a potential of −0.1 V vs. RHE. f The stability test of Y-NiMo/MoO2−x at 1000 mA cm−2 in 1 M KOH. Inset shows SEM images of Y-NiMo/MoO2−x after durability test.

Back to article page