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Safety Information

901791

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

50-300 nm
thickness < 3 layers

form

liquid

concentration

1 mg/mL in H2O

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General description

Tungsten disulfide suspension (WS2) (1 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 the fabrication of a variety of devices which include humidity sensors, and lithium ion battery. It can also be used 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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

901791-50ML:
901791-VAR:
901791-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCH5326

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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: a novel hydrogen evolution catalyst for water decomposition.
Sobczynski A, et al.
The Journal of Physical Chemistry, 92(8), 2311-2315 (1988)
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)
Tungsten disulfide wrapped on micro fiber for enhanced humidity sensing.
Guan H, et al.
Optical Materials Express, 7(5), 1686-1696 (2017)
Tungsten disulfide (WS 2) based all-fiber-optic humidity sensor.
Luo Y, et al.
Optics Express, 24(8), 8956-8966 (2016)
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