Co2SiO4
cobalt orthosilicate · cobalt silicate
Co2SiO4 is a stable, semiconducting cobalt silicate oxide utilized in electrochemical research for oxygen-evolution catalysis.
About cobalt orthosilicate
Co2SiO4 is a thermodynamically stable cobalt-based silicate that functions as a semiconducting oxide. Its structural integrity and electronic properties make it a subject of interest for advanced electrochemical applications, particularly in the study of oxygen-evolution reactions.
As a member of the oxide catalyst family, this compound benefits from the robust nature of its crystal lattice. Researchers utilize its stable framework to investigate charge transfer mechanisms and surface activity, which are essential for developing efficient catalysts for energy conversion technologies.
Key Properties
Cross-validated computational properties for cobalt orthosilicate, 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 Co2SiO4, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 0.00 | 0.0002 | -7.770 | 4.77 |
| P21/c (No. 14) | monoclinic | 0.00 | 0.0082 | -7.762 | 4.60 |
| Imma (No. 74) | orthorhombic | 1.31 | 0.0463 | -7.724 | 4.92 |
| Fd-3m (No. 227) | cubic | 0.00 | 0.0639 | -7.706 | 5.04 |
| Imma (No. 74) | Orthorhombic | — | — | — | 5.12 |
| Fd-3m (No. 227) | Cubic | — | — | — | 5.27 |
| Fd-3m (No. 227) | Cubic | — | — | — | 5.51 |
| Fd-3m (No. 227) | Cubic | — | — | — | 5.04 |
| Fd-3m (No. 227) | — | — | — | — | — |
| Imma (No. 74) | — | — | — | — | — |
| Imma (No. 74) | Orthorhombic | — | — | — | 5.31 |
| Imma (No. 74) | Orthorhombic | — | — | — | 4.92 |
Synthesis Routes
Literature-extracted synthesis procedures targeting Co2SiO4.
Applications
Where cobalt orthosilicate is used.
Frequently Asked Questions
Common questions about cobalt orthosilicate, answered from cross-validated data.
What is Co2SiO4?
Co2SiO4 is a stable, semiconducting cobalt silicate oxide utilized in electrochemical research for oxygen-evolution catalysis.
What is Co2SiO4 used for?
What is the band gap of Co2SiO4?
Is Co2SiO4 a metal, semiconductor, or insulator?
Is Co2SiO4 thermodynamically stable?
What is the crystal structure of Co2SiO4?
What is the density of Co2SiO4?
How many polymorphs of Co2SiO4 are known?
How is Co2SiO4 synthesized?
What elements does Co2SiO4 contain?
Where does the data for Co2SiO4 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse landscape of oxide oxygen-evolution catalysts, Co2SiO4 occupies a distinct niche compared to transition metal oxides like NiO or complex layered structures such as LiCoO2. While many of its class members are optimized for lithium-ion battery electrodes, Co2SiO4 is primarily valued for its specific catalytic surface behavior and structural stability, distinguishing it from the more widely utilized perovskite-type catalysts 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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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