Mn2O8U2
Mn2O8U2 is a semiconducting ternary oxide being studied for its potential role in oxygen-evolution catalytic processes.

About Mn2O8U2
Mn2O8U2 is a complex ternary oxide categorized within the family of oxygen-evolution catalysts. As a semiconducting material, it represents a unique intersection of manganese and uranium chemistry, offering a distinct electronic profile that researchers explore to understand catalytic activity in electrochemical systems. The compound is characterized by a high degree of structural complexity, with multiple reported configurations across materials databases. Given its position relative to the thermodynamic ground state, it is considered a metastable phase, which makes it a subject of interest for fundamental studies into phase formation and catalytic surface behavior.
Key Properties
Cross-validated computational properties for Mn2O8U2, 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 Mn2O8U2, 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. |
|---|---|---|---|---|---|
| Imma (No. 74) | orthorhombic | 0.71 | 0.4277 | -9.365 | 7.78 |
| Imma (No. 74) | orthorhombic | 0.74 | 0.4453 | -9.348 | 7.68 |
| Cmmm (No. 65) | orthorhombic | 0.62 | 0.4801 | -9.313 | 7.27 |
| — | — | — | — | — | 7.15 |
| Imma (No. 74) | — | — | — | — | — |
Applications
Where Mn2O8U2 is used.
Frequently Asked Questions
Common questions about Mn2O8U2, answered from cross-validated data.
What is Mn2O8U2?
Mn2O8U2 is a semiconducting ternary oxide being studied for its potential role in oxygen-evolution catalytic processes.
What is Mn2O8U2 used for?
What is the band gap of Mn2O8U2?
Is Mn2O8U2 a metal, semiconductor, or insulator?
Is Mn2O8U2 thermodynamically stable?
What is the crystal structure of Mn2O8U2?
What is the density of Mn2O8U2?
How many polymorphs of Mn2O8U2 are known?
What elements does Mn2O8U2 contain?
Where does the data for Mn2O8U2 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the broader class of oxygen-evolution catalysts, Mn2O8U2 stands out as a specialized, complex oxide compared to more conventional, highly stable transition metal oxides like LiMn2O4 or LaMnO3. While many of its siblings are widely utilized in commercial battery or catalytic applications due to their robust thermodynamic stability, Mn2O8U2 serves as a more niche, exploratory material that challenges standard structural paradigms found in common perovskite or spinel systems.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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