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MoS2 nanosheets on C3N4 realizing improved electrochemical hydrogen evolution.
- Source :
-
Materials Letters . Jun2017, Vol. 197, p41-44. 4p. - Publication Year :
- 2017
-
Abstract
- Improving the electrochemical hydrogen evolution reaction (HER) activity of inexpensive catalysts is central in the area of sustainable energy conversion, yet remains an extraordinary challenge. Here, we firstly construct MoS 2 nanosheets vertically anchored on C 3 N 4 for high-efficiency electrochemical HER. The rational structure design endows MoS 2 nanosheets with combined advantages of maximally exposed edges and defect-rich structure. Moreover, the hybrid MoS 2 -C 3 N 4 possesses remarkably improved electrochemically active surface area and enhanced electrical conductivity than MoS 2 . Therefore, MoS 2 -C 3 N 4 exhibits robust electrocatalytic HER activity, including low overpotential (158 mV) required to generate the current density of 10 mA cm −2 , low Tafel slope (52 mV decade −1 ), and high current density (92 mA cm −2 at overpotential of 300 mV). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 197
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 122478147
- Full Text :
- https://doi.org/10.1016/j.matlet.2017.03.135