Fig. 5. Linear sweep voltammetry of 2D-hBN, 1PLD-2D-hBN and 6PLD-2D-hBN respectively with 0.5 M H2SO4, depicting the scanning stability experiments towards the HER; showing an increase in the current when more PLD are created (due to an increase in edge plane-sites/defects) when compared to the bare 2D-hBN electrode (scan rate: 5 mV s−1; vs. Ag/AgCl).
