V3CuO8
V3CuO8 is a metastable semiconducting spinel oxide used in specialized catalytic research.
About V3CuO8
V3CuO8 is a complex ternary oxide belonging to the spinel-related family of materials. As a metastable phase, it represents a unique structural arrangement of copper, vanadium, and oxygen that offers distinct catalytic potential compared to more common, highly stable oxides. Its electronic character as a semiconductor makes it an intriguing candidate for charge-transfer processes in chemical reactions. Researchers monitor this compound across multiple crystallographic structures to better understand its synthesis pathways and functional behavior. Its role in the broader class of spinel oxides is defined by its specific transition metal configuration, which influences its reactivity and surface properties. By leveraging its semiconducting nature, this material is investigated for specialized catalytic applications where electronic tuning is essential for performance.
Key Properties
Cross-validated computational properties for V3CuO8, 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 V3CuO8, 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. |
|---|---|---|---|---|---|
| Cm (No. 8) | monoclinic | 0.00 | 0.0647 | -7.975 | 3.97 |
| P213 (No. 198) | cubic | 0.84 | 0.0892 | -7.950 | 4.04 |
| Cm (No. 8) | — | — | — | — | — |
| Cm (No. 8) | Monoclinic | — | — | — | 3.97 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.37 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.11 |
| Cm (No. 8) | — | — | — | — | — |
Applications
Where V3CuO8 is used.
Frequently Asked Questions
Common questions about V3CuO8, answered from cross-validated data.
What is V3CuO8?
V3CuO8 is a metastable semiconducting spinel oxide used in specialized catalytic research.
What is V3CuO8 used for?
What is the band gap of V3CuO8?
Is V3CuO8 a metal, semiconductor, or insulator?
Is V3CuO8 thermodynamically stable?
What is the crystal structure of V3CuO8?
What is the density of V3CuO8?
How many polymorphs of V3CuO8 are known?
What elements does V3CuO8 contain?
Where does the data for V3CuO8 come from?
How It Compares
Within the spinel oxide catalysts class.
Unlike the highly stable and widely utilized MgAl2O4, which serves as a structural benchmark for the spinel family, V3CuO8 is a metastable phase that requires precise synthesis conditions. While simple binary oxides like CuO or ZnO are frequently employed for their robust catalytic activity, V3CuO8 offers a more complex electronic environment, positioning it as a specialized alternative to the more common perovskite-structured catalysts such as LaMnO3 or LaNiO3.
Related Compounds
Other Spinel Oxide 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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