Na2CoS2 — Properties & Data | MatWorld

Na2CoS2

metal

· JVASP-10284· Na2CoS2

Na2CoS2 is an inorganic compound combining sodium, cobalt, and sulfur, belonging to the metal sulfide family with potential applications in energy storage and catalysis research. This material is primarily of research interest rather than established in mainstream industrial production, with potential relevance to battery electrodes, heterogeneous catalysts, and photovoltaic systems where transition metal sulfides have shown promise. Engineers would consider this compound in exploratory development phases for next-generation energy devices where cobalt's redox activity and sulfur's electrochemical properties offer advantages over conventional alternatives.

battery electrode materialscatalytic applicationsenergy storage researchphotovoltaic absorberselectrochemical devicesmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	39.47	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3300	-	DFT · OptB88vdW
Shear Modulus(G)	15.96	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.854	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	5.893	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000214	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000208	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	28.39	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	27.89	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.1179	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8317	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

Regulatory Screening

Environmental

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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.

Na2CoS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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