NaFeS2 — Properties & Data | MatWorld

NaFeS2

metal

· JVASP-14034· NaFeS2

NaFeS2 is an iron sulfide compound with sodium, belonging to the family of mixed-metal sulfides. This material is primarily of research interest rather than an established engineering commodity, with potential applications in energy storage systems, particularly in sodium-ion battery cathodes and related electrochemical devices where its sulfide chemistry offers redox activity. Its development is motivated by the search for cost-effective and abundant alternatives to lithium-based systems, leveraging iron's prevalence and sodium's low cost compared to conventional battery chemistries.

sodium-ion batteriesenergy storage cathodeselectrochemical devicesresearch materialsbattery development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.458	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	3.048	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00191	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00196	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-29.57	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-30.35	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1765	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.6656	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

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.

NaFeS2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control