Room Temperature Electrodeposition of Molybdenum Sulfide for Catalytic and Photoluminescence Applications

An elegant method for the electrodeposition of MoS2 thin films using room temperature ionic liquids (RTIL) as an electrolyte was developed. Simple molecular precursors of Mo and S were added in different concentrations to tune the composition and deposition process. The electrodeposition of MoS2 was...

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Bibliographic Details
Published in:ACS nano 2013-09, Vol.7 (9), p.8199-8205
Main Authors: Murugesan, Sankaran, Akkineni, Arunkumar, Chou, Brendan P, Glaz, Micah S, Vanden Bout, David A, Stevenson, Keith J
Format: Article
Language:English
Subjects:
Catalysis
Concentration (composition)
Crystallization - methods
Electrodeposition
Electroplating - methods
Luminescent Measurements - methods
Macromolecular Substances - chemistry
Materials Testing
Molecular Conformation
Molybdenum - chemistry
Molybdenum disulfide
Molybdenum sulfides
Morphology
Nanostructure
Nanostructures - chemistry
Nanostructures - ultrastructure
Particle Size
Photoluminescence
Sulfides - chemistry
Surface Properties
Temperature
Tuning
X-ray photoelectron spectroscopy
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Summary:An elegant method for the electrodeposition of MoS2 thin films using room temperature ionic liquids (RTIL) as an electrolyte was developed. Simple molecular precursors of Mo and S were added in different concentrations to tune the composition and deposition process. The electrodeposition of MoS2 was confirmed with both Raman spectroscopy and XPS. Analysis showed that the electrodeposited MoS2 films form a flower shape morphology with edge active sites that promote the hydrogen evolution reaction (HER). Furthermore, this technique enables selective tuning of the film thickness and demonstrates high photoluminescence activity with a decrease in the number of layers.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn4036624