title: Efficient hydrogen evolution by mechanically strained MoS2 nanosheets.
abstract: We demonstrated correlations between mechanically bent tensile-strain-induced two-dimensional MoS2 nanosheets (NSs) and their electrochemical activities toward the hydrogen evolution reaction (HER). The tensile-strain-induced MoS2 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 MoS2 mass. Mechanically bending MoS2 NSs to induce tensile strain enables the production of powerful, efficient electrocatalysis systems for evolving hydrogen.
authors: Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea.
authors: Ji Hoon
authors: JH
authors: Lee
authors: Woo Soon
authors: WS
authors: Jang
authors: Sun Woong
authors: SW
authors: Han
authors: Hong Koo
authors: HK
authors: Baik