Na5CoO4 — Properties & Data | MatWorld

Na5CoO4

ceramic

· JVASP-43535· Na5CoO4

Na5CoO4 is an inorganic ceramic compound containing sodium, cobalt, and oxygen, belonging to the family of layered oxide materials. This is primarily a research-stage material studied for its electrochemical and structural properties rather than an established commercial ceramic. Interest in this compound centers on potential energy storage applications and fundamental studies of cobalt oxide layered structures, where sodium insertion/extraction behavior and ionic conductivity are of scientific interest.

energy storage researchlithium-ion battery alternativeselectrochemical deviceslayered oxide materialssodium-ion chemistrymaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.917	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.09700	eV	DFT · OptB88vdW
↳	0.4600	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	14.68	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	19.89	-	DFT · OptB88vdW
↳	2.130	-	DFT · TBmBJ
Magnetic Moment(μB)	8.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2561	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000139	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000150	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-5.963	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	4.500	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	13.11	%	DFT · TBmBJ

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)	0.04330	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.418	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.

Na5CoO4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental