Mn3BiO8
Mn3BiO8 is a semiconducting, metastable manganese bismuth oxide utilized in research regarding oxygen-evolution catalysis.
About Mn3BiO8
Mn3BiO8 is a semiconducting oxide that functions within the specialized class of oxygen-evolution catalysts. Its unique composition of manganese, bismuth, and oxygen positions it as a subject of interest for researchers investigating non-traditional catalytic materials for electrochemical energy conversion.
As a metastable phase, this compound offers a distinct structural profile compared to more conventional, highly stable oxides. Its electronic character makes it a candidate for studies focused on surface-active sites and the kinetics of oxygen production in aqueous environments.
Key Properties
Cross-validated computational properties for Mn3BiO8, 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 Mn3BiO8, 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. |
|---|---|---|---|---|---|
| P4332 (No. 212) | cubic | 0.46 | 0.0723 | -7.573 | 5.22 |
| R-3m (No. 166) | trigonal | 0.00 | 0.0929 | -7.552 | 5.17 |
| R-3m (No. 166) | Trigonal | — | — | — | 5.17 |
| R-3m (No. 166) | Trigonal | — | — | — | 5.78 |
| R-3m (No. 166) | Trigonal | — | — | — | 5.43 |
| R-3m (No. 166) | — | — | — | — | — |
Applications
Where Mn3BiO8 is used.
Frequently Asked Questions
Common questions about Mn3BiO8, answered from cross-validated data.
What is Mn3BiO8?
Mn3BiO8 is a semiconducting, metastable manganese bismuth oxide utilized in research regarding oxygen-evolution catalysis.
What is Mn3BiO8 used for?
What is the band gap of Mn3BiO8?
Is Mn3BiO8 a metal, semiconductor, or insulator?
Is Mn3BiO8 thermodynamically stable?
What is the crystal structure of Mn3BiO8?
What is the density of Mn3BiO8?
How many polymorphs of Mn3BiO8 are known?
What elements does Mn3BiO8 contain?
Where does the data for Mn3BiO8 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the broader family of oxygen-evolution catalysts, Mn3BiO8 occupies a niche position compared to well-established perovskite-structured materials like LaMnO3 or LaNiO3. While those siblings are often characterized by their robust structural stability and high conductivity, Mn3BiO8 represents a more complex, metastable alternative that challenges the standard design paradigms used for simpler oxides like NiO.
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).
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