Efficient Hydrogen Evolution by Mechanically Strained
MoS<sub>2</sub> Nanosheets
- Publication date
- Publisher
Abstract
We
demonstrated correlations
between mechanically bent tensile-strain-induced two-dimensional MoS<sub>2</sub> nanosheets (NSs) and their electrochemical activities toward
the hydrogen evolution reaction (HER). The tensile-strain-induced
MoS<sub>2</sub> NSs showed significantly steeper polarization curves
and lower Tafel slopes than the strain-free ones, which is consistent
with the simple d-band model. Furthermore, the mechanical strain increased
the electrochemical activities of all the NSs toward the HER except
those loaded with high MoS<sub>2</sub> mass. Mechanically bending
MoS<sub>2</sub> NSs to induce tensile strain enables the production
of powerful, efficient electrocatalysis systems for evolving hydrogen