Ta2Mn2O7

ceramic

· JVASP-46384· Ta2Mn2O7

Ta₂Mn₂O₇ is a complex oxide ceramic belonging to the pyrochlore or related layered oxide family, combining refractory tantalum with manganese in a mixed-valence structure. This compound is primarily of research interest for functional ceramic applications, particularly in energy storage, catalysis, and high-temperature oxidation resistance, where its tantalum content provides corrosion resistance and thermal stability. While not yet widely deployed in mainstream industrial production, materials in this chemical family are being investigated as potential cathode materials for batteries, catalytic supports, and erosion-resistant coatings where the combination of refractory and redox-active elements offers advantages over single-component oxides.

experimental cathode materialshigh-temperature ceramicscatalytic substratescorrosion-resistant coatingselectrochemical energy storage research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2553	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.454	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	65.21	-	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000314	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000806	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-82.48	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	377.5	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.08440	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.388	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.

Ta2Mn2O7 — Properties & Data | MatWorld

Ta2Mn2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental