Mg2Co3O8
Mg2Co3O8 is a semiconducting oxide material investigated for its catalytic potential in oxygen-evolution reactions.
About Mg2Co3O8
Mg2Co3O8 is a semiconducting oxide that belongs to the broader class of oxygen-evolution catalysts. Its structural configuration and electronic properties make it a subject of interest for researchers investigating efficient pathways for electrochemical water splitting and energy conversion processes. The material is characterized by its near-hull thermodynamic stability, suggesting that it is a viable candidate for synthesis and experimental characterization. With multiple reported structures across major databases, it represents a significant, albeit specialized, entry in the landscape of transition metal-based oxide catalysts.
Key Properties
Cross-validated computational properties for Mg2Co3O8, 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 Mg2Co3O8, 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. |
|---|---|---|---|---|---|
| C2/m (No. 12) | monoclinic | 0.52 | 0.0131 | -6.645 | 4.69 |
| P63mc (No. 186) | hexagonal | 0.00 | 0.0145 | -6.644 | 4.60 |
| C2/m (No. 12) | — | — | — | — | — |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.57 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.78 |
| P63mc (No. 186) | Hexagonal | — | — | — | 5.00 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.66 |
| P63mc (No. 186) | Hexagonal | — | — | — | 4.21 |
| P63mc (No. 186) | Hexagonal | — | — | — | 4.58 |
Applications
Where Mg2Co3O8 is used.
Frequently Asked Questions
Common questions about Mg2Co3O8, answered from cross-validated data.
What is Mg2Co3O8?
Mg2Co3O8 is a semiconducting oxide material investigated for its catalytic potential in oxygen-evolution reactions.
What is Mg2Co3O8 used for?
What is the band gap of Mg2Co3O8?
Is Mg2Co3O8 a metal, semiconductor, or insulator?
Is Mg2Co3O8 thermodynamically stable?
What is the crystal structure of Mg2Co3O8?
What is the density of Mg2Co3O8?
How many polymorphs of Mg2Co3O8 are known?
What elements does Mg2Co3O8 contain?
Where does the data for Mg2Co3O8 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse group of oxygen-evolution catalysts, Mg2Co3O8 occupies a distinct niche compared to more conventional materials like LiCoO2 or NiO. While many of its siblings are widely utilized in commercial battery technologies or established catalytic systems, Mg2Co3O8 serves as a focus for fundamental material exploration, offering a unique electronic environment that differentiates it from the more heavily studied perovskite-structured oxides like LaMnO3 or LaNiO3.
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).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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