Publications
Detailed Information
Enhancing Catalytic Activity of MoS2 Basal Plane S-Vacancy by Co Cluster Addition
Cited 121 time in
Web of Science
Cited 119 time in Scopus
- Authors
- Issue Date
- 2018-11
- Publisher
- American Chemical Society
- Citation
- ACS Energy Letters, Vol.3 No.11, pp.2685-2693
- Abstract
- The basal plane of molybdenum disulfide (MoS2) was recently activated for hydrogen evolution reaction (HER) by creating sulfur (S) vacancies (MoS2-x). However, the HER activity of those S-vacancies depends on the concentration of S-vacancies, imposing a dilemma for either improving activity per site or increasing overall active site density. Herein, we use density functional theory (DFT) calculations and experiments to show that the HER activities of MoS2-x are greatly enhanced by adding cobalt (Co) clusters on the basal plane. Our DFT results show that the highest HER activity is achieved when the Co clusters are anchored on the S-vacancies with the interface of Co Mo as the preferred active site. Our experiments confirm that the addition of Co enhances the activity per unit active site and increases the electrochemical active surface area. These results demonstrate the basal plane activity of MoS2-x can be enhanced by decorating S vacancies with transition-metal clusters.
- ISSN
- 2380-8195
- Files in This Item:
- There are no files associated with this item.
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.