Fig. 3: WS2 films as a catalyst for hydrogen evolution.
From: Heterostructures formed through abraded van der Waals materials

a Optical micrograph of the electrochemical cell highlighting the different electrodes. b Polarisation curves comparing Pt, Au and abraded WS2 measured in 0.5 M H2SO4 with a scan rate of 2 mV/s at room temperature. The inset shows the Tafel plots for our WS2 sample.