Wolframdisulfid
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- CAS-Nr.
- 12138-09-9
- Bezeichnung:
- Wolframdisulfid
- Englisch Name:
- TUNGSTEN SULFIDE
- Synonyma:
- TUNGSTEN DISULFIDE;Tungsten Disulfide Nanopowder;EASCHEM;Tungsten Sulde;powder, 2 Tungsten sulfid;Wolframdisulfid;TUNGSTEN SULFIDE;ungstendisulfide;WS2 powder 0.88μm
- CBNumber:
- CB9239043
- Summenformel:
- S2W
- Molgewicht:
- 247.97
- MOL-Datei:
- 12138-09-9.mol
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Wolframdisulfid Eigenschaften
- Schmelzpunkt:
- 1480 °C
- Dichte
- 7.5 g/mL at 25 °C(lit.)
- RTECS-Nr.
- YO7716000
- L?slichkeit
- insoluble in H2O, HCl, alkaline solutions
- Aggregatzustand
- powder
- Farbe
- Dark gray
- Wichte
- 7.5
- Wasserl?slichkeit
- Slightly soluble in water.
- Crystal Structure
- MoS2 type
- crystal system
- Six sides
- Space group
- P63/mmc
- Lattice constant
| a/nm | b/nm | c/nm | α/o | β/o | γ/o | V/nm3 |
| 0.31532 | 0.31532 | 1.2323 | 90 | 90 | 120 | 0.1061 |
- Expositionsgrenzwerte
- ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
- CAS Datenbank
- 12138-09-9(CAS DataBase Reference)
- EPA chemische Informationen
- Tungsten sulfide (WS2) (12138-09-9)
- Bandgap
- 1.4 - 2.01 eV
- Electronic properties
- 2D semiconductor
Wolframdisulfid Chemische Eigenschaften,Einsatz,Produktion Methoden
Beschreibung
Few-layer?tungsten disulfide (WS2) film has a 2D-layered structure with a narrow indirect bandgap of of 1.35 eV. In contrast, the monolayer film possesses a direct bandgap of 2.1 eV.
synthetische
Synthetic?- Chemical Vapour Transport (CVT)
Application
Due to its distinctive electron configuration and high specific surface area, few-layer tungsten disulfide nanosheets have potential applications in electrodes and energy storage devices, supercapacitors, and photoelectrochemical cells as a catalyst for hydrogen evolution reactions (HERs). With?tunable electromagnetic absorption, it has practical applications?against electromagnetic pollution. WS2?is also a great potential candidate in photothermal therapy for the ablation of cancer cells, when NIR light is absorbed and converted into heat.
R-S?tze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
Grayish-black solid. Mp above 1480C,
can lubricate at temperatures above 2400F (1316C).
Attacked by fluorine and hot sulfuric and hydrogen
fluoride.
Verwenden
Tungsten sulfide is used as a component of catalysts for hydrotreating of crude oil, hydrodesulfurization and hydrodenitrification reactions. It finds application as solid-state secondary lithium battery cathodes and other electrochemical devices. It is found that it forms inorganic nanotubes, which is better reinforcing agents than carbon nanotubes. Tungsten sulfide addition to epoxy resin improves adhesion, fracture toughness and strain energy release rate.
Wolframdisulfid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Wolframdisulfid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 217)Lieferanten
12138-09-9(Wolframdisulfid)Verwandte Suche:
- Tungsten Disulfide dispersion
- Tungsten sulfide (metals basis)
- Tungsten(IV) sulfide powder
- Tungsten disulfide, particle size 0.7-1.1 micrometer
- Wolfram(IV)disulfide
- tungsten disuIlfide
- Tungsten Disulfide Micro powder
- Tungsten Disulfide Nanoparticles
- Tungsten sulfid
- Tungsten(IV) sulfide powder, 2 MuM, 99%
- Tungsten(IV) sulfide nanopowder, 90 nm avg. part. size (SEM), 99% trace metals basis
- Tungsten disulfide Crystal, 99.995%
- Tungsten sulfide, 99.5% trace metals basis
- TUNGSTEN(IV) SULFIDE
- TUNGSTEN SULFIDE
- tungstensulfide(ws2)
- TUNGSTEN DISULFIDE, POWDER, <2 MICRON, 9 9%
- TUNGSTEN SULFIDE, 99.8% (METALS BASIS)
- TUNGSTEN DISULFIDE 99%,PARTICLE SIZE 0.7-1.1 MICROMETER
- Tungsten(IV)sulfide(99.5%-W)
- Wolframdisulfid
- TUNGSTEN(IV) SULFIDE: 99.5%
- tungsten disulphide
- Tungsten bisulfide
- Single layer tungsten(IV) disulfide, 1 mg/mL dispersion in water, size: 0.1 - 4 μm, thickness: approx. 1 nm
- Single layer tungsten(IV) disulfide, 1 mg/mL dispersion in ethanol, size: 0.1 - 4 μm, thickness: approx. 1 nm
- Tungsten(IV) Sulfide(WS2)
- nm 99.9%tungsten disulfide
- TUNGSTEN DISULFIDE, 99%TUNGSTEN DISULFIDE, 99%TUNGSTEN DISULFIDE, 99%
- EASCHEM
- Tungsten disulfide(WS2)
- TSKgel(R) DEAE-5PW Guards and Guardgel Kits
- Tungstendisulfide Inorganic Fullerenes
- ungstendisulfide
- Tungsten Disulfide Crystal
- Tungsten Disulfide Few-Layer Film
- Tungsten Disulfide Monolayer Film
- Tungsten(IV) sulphide, 99%
- Tungsten sulfide nanopowder, APS 90 nm, 99%
- Tungsten Sulde
- Tungsten Disulfide (WS2) Aerosol Spray (13Oz/369g)
- Tungsten Disulfide extrapure, 99.9%
- Tungsten Disulfide Coating
- TUNGSTEN DISULFIDE
- Tungsten Disulfide Nanopowder
- WS2 powder 0.88μm
- powder, 2
- Tungsten (IV) sulfide, 99.9%
- Mechanically Exfoliated Monolayer WS2 On Substrates
- Monolayer Tungsten Disulfide (WS2) Quantum Dots
- Monolayer Tungsten Disulfide (WS2) Quantum Dots Powder
- CVD Method Monolayer WS2
- Monolayer Tungsten Disulfide (WS2)
- Nano Size Monolayer Tungsten Disulfide (WS2)
- TUNGSTEN SULFIDEv
- 12138-09-9
- WS2
- S2W
