Defects Engineered Monolayer MoS 2 for Improved Hydrogen Evolution Reaction
Rice University · Vanderbilt University · +1 more institution
Abstract
MoS2 is a promising and low-cost material for electrochemical hydrogen production due to its high activity and stability during the reaction. However, the efficiency of hydrogen production is limited by the amount of active sites, for example, edges, in MoS2. Here, we demonstrate that oxygen plasma exposure and hydrogen treatment on pristine monolayer MoS2 could introduce more active sites via the formation of defects within the monolayer, leading to a high density of exposed edges and a significant improvement of the hydrogen evolution activity. These as-fabricated defects are characterized at the scale from macroscopic continuum to discrete atoms. Our work represents a facile method to increase the hydrogen…
Citation impact
- FWCI
- 48.49
- Percentile
- 100%
- References
- 45
Authors
9Topics & keywords
- Monolayer
- Hydrogen
- Hydrogen production
- Electrochemistry
- Catalysis
- Materials science
- Oxygen evolution
- Water splitting