NbW9Se20

metal

· JVASP-31717· NbW9Se20

NbW9Se20 is a mixed-metal selenide compound combining niobium and tungsten with selenium, belonging to the class of transition metal chalcogenides. This is a research-phase material rather than a widely commercialized engineering material; compounds in this family are investigated for electronic, thermoelectric, and catalytic applications due to the favorable electronic properties that arise from layered or complex crystal structures. The niobium-tungsten-selenium system may offer potential advantages in applications requiring tunable band gaps, strong light-matter interactions, or catalytic activity, though engineering adoption remains limited pending further development and scalability assessment.

research thermoelectricscatalyst developmentoptoelectronic devicesenergy conversion (experimental)materials science R&Dsemiconductor alternatives

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.673	kg/m³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00200	eV/atom	—
Formation Energy(ΔHf)	-0.5749	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

NbW9Se20

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control