Co8O28V8
Co8O28V8 is a semiconducting cobalt-vanadium oxide being investigated for its potential utility in oxygen-evolution catalytic applications.
About Co8O28V8
Co8O28V8 is a complex cobalt-vanadium oxide that functions as a semiconducting material. Its electronic structure and near-hull thermodynamic stability make it a subject of interest for researchers investigating advanced catalytic surfaces. The compound represents a unique arrangement of transition metal centers within an oxygen framework, which is critical for modulating charge transfer during electrochemical processes. By providing a stable platform for surface reactions, this material contributes to the ongoing development of efficient oxygen-evolution catalysts. Its potential for synthesis suggests it could be integrated into future energy storage or conversion systems where robust, semiconducting oxides are required to facilitate complex redox pathways.
Key Properties
Cross-validated computational properties for Co8O28V8, 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 Co8O28V8, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 1.85 | 0.0023 | -8.090 | 4.36 |
| No. 0 | unknown | — | — | — | 1.07 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where Co8O28V8 is used.
Frequently Asked Questions
Common questions about Co8O28V8, answered from cross-validated data.
What is Co8O28V8?
Co8O28V8 is a semiconducting cobalt-vanadium oxide being investigated for its potential utility in oxygen-evolution catalytic applications.
What is Co8O28V8 used for?
What is the band gap of Co8O28V8?
Is Co8O28V8 a metal, semiconductor, or insulator?
Is Co8O28V8 thermodynamically stable?
What is the crystal structure of Co8O28V8?
What is the density of Co8O28V8?
How many polymorphs of Co8O28V8 are known?
What elements does Co8O28V8 contain?
Where does the data for Co8O28V8 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse landscape of oxide oxygen-evolution catalysts, Co8O28V8 occupies a specialized niche compared to more traditional, highly-studied materials like LiCoO2 or NiO. While binary oxides like NiO are standard benchmarks for catalytic activity, Co8O28V8 offers a more intricate structural complexity that may allow for finer tuning of electronic properties. Unlike the layered structures found in LiNiO2 or La2NiO4, this compound utilizes a distinct cobalt-vanadium framework that differentiates its catalytic mechanism from the perovskite-based oxides such as LaMnO3 or BiFeO3.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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