Ca2.7Na0.3Co4O9

ceramic
· Ca2.7Na0.3Co4O9

Ca2.7Na0.3Co4O9 is a layered cobalt oxide ceramic belonging to the misfit layer compound family, synthesized as a research material for thermoelectric applications. This sodium-doped calcium cobalt oxide is investigated primarily in materials science labs as a promising candidate for medium-temperature thermoelectric devices, where the layered crystal structure and transition-metal composition support electrical conductivity while maintaining low lattice thermal conductivity. While not yet widely deployed in commercial products, compounds in this family are of strong industrial interest for waste heat recovery systems and solid-state power generation where conventional thermoelectric materials reach their temperature limits.

thermoelectric power generationwaste heat recovery systemsintermediate-temperature energy conversionresearch and development materialssolid-state cooling devices

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Thermal Conductivity(k)2 entries
—
W/(m·K)——
↳
—
W/(m·K)427°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.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Electrical Conductivity(σ)
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S/cm427°C—
Electrical Resistivity(ρe)
—
Ω·m427°C—
Thermoelectric Power Factor(PF)
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W/(m·K²)427°C—
Seebeck Coefficient(S)
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μV/K427°C—
Thermoelectric Figure of Merit(zT)
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-427°C—
Verified Unverified Low confidence (<80%) Link to source

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.