MoW2Se2S4 — Properties & Data | MatWorld

MoW2Se2S4

metal

· JVASP-28520· MoW2Se2S4

MoW₂Se₂S₄ is a mixed-metal dichalcogenide compound combining molybdenum, tungsten, selenium, and sulfur in a layered crystal structure. This material belongs to the family of transition metal dichalcogenides (TMDs), which are primarily investigated in research contexts for their unique electronic and catalytic properties rather than established commercial production. The compound is of interest for catalytic applications—particularly hydrogen evolution and electrocatalysis—where the combination of multiple transition metals and chalcogen atoms can create active sites with tunable electronic properties, offering potential advantages over single-metal dichalcogenide alternatives in electrochemical energy conversion systems.

electrocatalysishydrogen evolution reaction (HER)energy storage devicesresearch-phase 2D materialswater splitting electrodesheterostructure semiconductors

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	68.64	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	47.61	GPa	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	7.176	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6540	eV	DFT · OptB88vdW
↳	1.331	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	15.41	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	13.80	-	DFT · OptB88vdW
↳	12.28	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1347	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00000245	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00111	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-561.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	319.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.95	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1113	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8089	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

MoW2Se2S4

Mechanical Properties

Physical Properties

Electrical Properties

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