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 MoS 2 NSs to induce tensile strain enables the production of powerful, efficient electrocatalysis systems for evolving hydrogen.
| Original language | English |
|---|---|
| Pages (from-to) | 9866-9873 |
| Number of pages | 8 |
| Journal | Langmuir |
| Volume | 30 |
| Issue number | 32 |
| DOIs | |
| Publication status | Published - 2014 Aug 19 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Spectroscopy
- Electrochemistry
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Efficient hydrogen evolution by mechanically strained MoS2 nanosheets. / Lee, Ji Hoon; Jang, Woo Soon; Han, Sun Woong; Baik, Hong Koo.
In: Langmuir, Vol. 30, No. 32, 19.08.2014, p. 9866-9873.Research output: Contribution to journal › Article
TY - JOUR
T1 - Efficient hydrogen evolution by mechanically strained MoS2 nanosheets
AU - Lee, Ji Hoon
AU - Jang, Woo Soon
AU - Han, Sun Woong
AU - Baik, Hong Koo
PY - 2014/8/19
Y1 - 2014/8/19
N2 - 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 MoS 2 NSs to induce tensile strain enables the production of powerful, efficient electrocatalysis systems for evolving hydrogen.
AB - 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 MoS 2 NSs to induce tensile strain enables the production of powerful, efficient electrocatalysis systems for evolving hydrogen.
UR - http://www.scopus.com/inward/record.url?scp=84906232972&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84906232972&partnerID=8YFLogxK
U2 - 10.1021/la501349k
DO - 10.1021/la501349k
M3 - Article
AN - SCOPUS:84906232972
VL - 30
SP - 9866
EP - 9873
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 32
ER -