NiO2

ceramic

· NiO2

NiO2 is a nickel oxide ceramic compound that exists primarily in research and specialized industrial contexts rather than widespread commercial use. The material exhibits interesting electronic and structural properties that make it relevant for energy storage, catalysis, and advanced electrochemical applications. Engineers consider NiO2 particularly for battery electrodes, supercapacitors, and catalytic systems where its layered crystal structure and redox activity provide advantages over conventional nickel oxides.

battery cathodessupercapacitor electrodeselectrocatalystswater splitting catalysisenergy storage deviceselectrochemical sensors

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	6,781.6	ksi	DFT
↳	15,130.3	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	57.78	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4000	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	4,676.9	ksi	DFT
↳	7,117	ksi	DFT · OptB88vdW

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
Density(ρ)	0.1929	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions
Band Gap(Eg)	0.7540	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	114	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	16.21	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.00624	C/m²	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.4010	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4318	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

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.

NiO2 — Properties & Data | MatWorld

NiO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental