Fig. 6: Comparison of the HER performances in a size-controlled micro-electrochemical cell.
From: Engineering grain boundaries at the 2D limit for the hydrogen evolution reaction
a–c Current density (a), Tafel plots (b), and onset potentials (c) for the MoS2 devices with serial window sizes from 25–150 μm2. The nanograin films show higher current density, lower Tafel slope, and onset potential compared to the basal plane, single edge, and single GB.
