Ta2Mn4O9
Ta2Mn4O9 is a thermodynamically stable semiconducting oxide used primarily in the study and development of oxygen-evolution catalysts.
About Ta2Mn4O9
Ta2Mn4O9 is a complex oxide that functions as a semiconductor, positioning it as a specialized candidate for catalytic applications. Its thermodynamic stability on the convex hull suggests a robust structural framework, making it a reliable subject for research into advanced materials for energy conversion processes. The compound is part of a broader class of oxygen-evolution catalysts, where its electronic properties are leveraged to facilitate critical electrochemical reactions. Its presence across multiple structural databases highlights its significance as a well-defined material within the landscape of transition metal oxides.
Key Properties
Cross-validated computational properties for Ta2Mn4O9, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Ta2Mn4O9, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P-3c1 (No. 165) | trigonal | 2.46 | 0.0000 | -9.675 | 6.92 |
| Cc (No. 9) | monoclinic | 2.67 | 0.0208 | -9.654 | 6.63 |
| P1 (No. 1) | triclinic | 0.00 | 0.1989 | -9.476 | 6.41 |
| P-3c1 (No. 165) | Trigonal | — | — | — | 6.61 |
| P-3c1 (No. 165) | Trigonal | — | — | — | 7.06 |
| P-3c1 (No. 165) | Trigonal | — | — | — | 6.80 |
| Cc (No. 9) | Monoclinic | — | — | — | 6.63 |
| Cc (No. 9) | Monoclinic | — | — | — | 6.86 |
| P-3c1 (No. 165) | — | — | — | — | — |
| Cc (No. 9) | Monoclinic | — | — | — | 7.16 |
Applications
Where Ta2Mn4O9 is used.
Frequently Asked Questions
Common questions about Ta2Mn4O9, answered from cross-validated data.
What is Ta2Mn4O9?
Ta2Mn4O9 is a thermodynamically stable semiconducting oxide used primarily in the study and development of oxygen-evolution catalysts.
What is Ta2Mn4O9 used for?
What is the band gap of Ta2Mn4O9?
Is Ta2Mn4O9 a metal, semiconductor, or insulator?
Is Ta2Mn4O9 thermodynamically stable?
What is the crystal structure of Ta2Mn4O9?
What is the density of Ta2Mn4O9?
How many polymorphs of Ta2Mn4O9 are known?
What elements does Ta2Mn4O9 contain?
Where does the data for Ta2Mn4O9 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike more conventional battery-cathode materials such as LiCoO2 or LiMn2O4, which are primarily optimized for lithium-ion storage, Ta2Mn4O9 is distinguished by its role as a dedicated oxygen-evolution catalyst. While siblings like LaMnO3 share similar transition metal components, Ta2Mn4O9 offers a unique structural configuration that differentiates its catalytic performance from the layered or perovskite structures common to the rest of the class.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
Analyze Ta2Mn4O9 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →