Fig. 4: Layer-dependent electrocatalytic activity of single MoS2 nanosheets.
From: Plasmonic imaging of the layer-dependent electrocatalytic activity of two-dimensional catalysts
Optical images and snapshots of plasmonic images of (a, b) multilayer MoS2 and (c, d) the corresponding surface plasmon-thinned monolayer MoS2 during potential sweeping, illustrating the significant difference in the concentration of [Ru(NH3)6]2+ ions. The scale bar represents 20 μm. e Plasmonic intensity change (∆I/I) curves vs. potential of multilayer and monolayer MoS2. f Cyclic voltammograms of multilayer and monolayer MoS2 calculated by the electrochemical imaging. g The surface charge density of MoS2 dropped quickly as its thickness increased.
