Fig. 4: Microcell HER measurements of the 3CoMo−Vs samples. | Nature Communications

Fig. 4: Microcell HER measurements of the 3CoMo−Vs samples.

From: Enhanced performance of in-plane transition metal dichalcogenides monolayers by configuring local atomic structures

Fig. 4

a, b Schematic illustration of the microreactor device fabricated on 3CoMo−Vs structured MoS2 monolayer. c LSV curves of the samples with Co concentrations of 1.6, 3.1, 3.8, 5.8, and 7.0 at%. d The corresponding Tafel plots of the polarization curves in panel c. e The changing trends of Tafel slopes and η10 with varied Co concentration. The optimal Co concentration is determined to be ~3.8 at%, corresponding to the concentration of 3CoMo−Vs around 1.2 at%.

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