Mn6O20Sr8
Mn6O20Sr8 is a semiconducting strontium manganese oxide being studied for its potential role as a catalyst in oxygen-evolution reactions.
About Mn6O20Sr8
Mn6O20Sr8 is a complex strontium manganese oxide that functions as a semiconducting material within the family of oxygen-evolution catalysts. Its structural configuration suggests a potential for catalytic activity in electrochemical processes where oxygen production is a critical step.
As a near-hull stable compound, it is considered a viable candidate for experimental synthesis and characterization. Its presence across multiple structural databases highlights its significance as a material of interest for researchers investigating advanced oxide catalysts.
Key Properties
Cross-validated computational properties for Mn6O20Sr8, 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 Mn6O20Sr8, 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. |
|---|---|---|---|---|---|
| Cmce (No. 64) | orthorhombic | 1.20 | 0.0034 | -7.510 | 5.23 |
| P2221 (No. 17) | orthorhombic | 1.29 | 0.0060 | -7.508 | 5.00 |
| — | — | — | — | — | 5.00 |
| Cmce (No. 64) | — | — | — | — | — |
| Cmce (No. 64) | — | — | — | — | — |
Applications
Where Mn6O20Sr8 is used.
Frequently Asked Questions
Common questions about Mn6O20Sr8, answered from cross-validated data.
What is Mn6O20Sr8?
Mn6O20Sr8 is a semiconducting strontium manganese oxide being studied for its potential role as a catalyst in oxygen-evolution reactions.
What is Mn6O20Sr8 used for?
What is the band gap of Mn6O20Sr8?
Is Mn6O20Sr8 a metal, semiconductor, or insulator?
Is Mn6O20Sr8 thermodynamically stable?
What is the crystal structure of Mn6O20Sr8?
What is the density of Mn6O20Sr8?
How many polymorphs of Mn6O20Sr8 are known?
What elements does Mn6O20Sr8 contain?
Where does the data for Mn6O20Sr8 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse landscape of oxygen-evolution catalysts, Mn6O20Sr8 occupies a specialized niche compared to more conventional materials like LiMn2O4 or LaMnO3. While many of its class members are well-established battery cathode materials or perovskite-based catalysts, this specific strontium-rich stoichiometry offers a distinct structural framework that differentiates it from the simpler binary or ternary oxides in the group.
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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