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901775

Sigma-Aldrich

Tungsten disulfide suspension

Synonym(s):

2D-Tungsten disulfide, 2D-Tungsten disulfide dispersion with nonionic surfactant, 2D-Tungsten sulfide dispersion, Tungsten sulfide

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About This Item

Linear Formula:
WS2
UNSPSC Code:
12352302
NACRES:
NA.23

description

thickness < 3 layers
50-300 nm

form

liquid

concentration

5 mg/mL in H2O

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General description

Tungsten disulfide suspension (WS2) (5 mg/mL in water) is a two dimensional (2D) transition metal dichalcogenide (TMD) material with a hexagonal configuration. It is a graphene like material that has a honeycomb network. Its properties include high flexibility, and moderate mobility of charge carriers.

Application

Owing to the thickness dependent physical and chemical properties, the transition metal dichalcogenide (TMD) based two dimensional (2D) nanomaterials have drawn significant attention recently. The atomically thin layers of MoS2 and WS2 represent important class of TMD based 2D-material and they find applications in photocatalysis, phtotovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc.
WS2 suspensions can be used in a variety of applications such as fabrication of humidity sensors, and lithium ion batteries, and as a catalyst for water decomposition.

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synergistic performance of porous laminated tungsten disulfide/copper oxide/single-wall carbon nanotubes hybrids for lithium ions batteries.
Liu Y, et al.
Electrochimica Acta, 148(8), 73-78 (2014)
Exploration of Nanostructured Functional Materials Based on Hybridization of Inorganic 2D Nanosheets.
Gunjakar J L, et al.
The Journal of Physical Chemistry C, 118, 3847- 3847 (2014)
Tungsten disulfide (WS 2) based all-fiber-optic humidity sensor.
Luo Y, et al.
Optics Express, 24(8), 8956-8966 (2016)
Tungsten disulfide wrapped on micro fiber for enhanced humidity sensing.
Guan H, et al.
Optical Materials Express, 7(5), 1686-1696 (2017)
Tungsten disulfide: a novel hydrogen evolution catalyst for water decomposition.
Sobczynski A, et al.
The Journal of Physical Chemistry, 92(8), 2311-2315 (1988)
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