NiI2 — Properties & Data | MatWorld

NiI2

Name: NiI2
Brand: MatWorld

metal

· NiI2

Nickel iodide (NiI₂) is an inorganic compound that exists primarily as a layered crystalline material, belonging to the halide family of transition metal compounds. While not widely used in conventional structural engineering, NiI₂ is of significant interest in materials research for layered material applications, particularly as a precursor or component in two-dimensional material synthesis and as a model system for studying layered crystal physics. The material's weak interlayer bonding and potential for exfoliation make it relevant to emerging technologies in nanoelectronics, energy storage, and catalysis, though current applications remain largely in the research and development phase rather than mature industrial production.

two-dimensional materials researchbattery cathode materialscatalytic applicationslayered crystal studynanoelectronics precursorsmaterials characterization

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	24.50	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	81.67	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3400	-	DFT · OptB88vdW
Shear Modulus(G)	9.800	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.919	kg/m³	DFT · OptB88vdW

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

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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
Dielectric Constant (Relative Permittivity)(εr)	125	-	DFT · OptB88vdW
Magnetic Moment(μB)	1.886	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000224	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000952	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-36.65	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	9.693	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.09994	eV/atom	DFT · OptB88vdW
↳	-0.2702	eV/atom	Measured

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

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.

NiI2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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