Na2CoP2O7 — Properties & Data | MatWorld

Na2CoP2O7

ceramic

· JVASP-36517· Na2CoP2O7

Sodium cobalt pyrophosphate (Na₂CoP₂O₇) is an inorganic ceramic compound belonging to the pyrophosphate family, combining alkali metal, transition metal, and phosphate components. This material is primarily explored in research contexts for battery cathode applications, particularly in sodium-ion battery systems where cobalt pyrophosphates offer potential advantages in charge storage and ionic conductivity. Its notable characteristics stem from the structural flexibility of pyrophosphate frameworks, which can accommodate multiple charge carriers, making it relevant for next-generation energy storage where cobalt-based alternatives to lithium systems are being investigated.

sodium-ion battery cathodesenergy storage researchsolid-state ionic conductorselectrochemical applicationsphosphate-based ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	7,005.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4100	-	DFT · OptB88vdW
Shear Modulus(G)	1,595.4	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1086	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.7570	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	13.24	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	40.38	-	DFT · OptB88vdW
Magnetic Moment(μB)	6.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1195	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000522	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000765	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-273.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	389.9	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)	0.02350	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.080	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.

Na2CoP2O7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental