Co2SnO4
Co2SnO4 is a stable, semimetallic oxide material primarily investigated for its catalytic activity in oxygen-evolution reactions.
About Co2SnO4
Co2SnO4 is a stable oxide material characterized by its semimetallic electronic nature. As a member of the oxygen-evolution catalyst class, it holds significant interest for researchers investigating efficient pathways for water splitting and other electrochemical oxidation processes.
Its position on the convex hull indicates high thermodynamic stability, making it a robust candidate for catalytic applications. The material is frequently studied for its ability to facilitate electron transfer during complex surface reactions, which is essential for developing next-generation energy storage and conversion devices.
Key Properties
Cross-validated computational properties for Co2SnO4, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Co2SnO4. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for Co2SnO4, 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. |
|---|---|---|---|---|---|
| Imma (No. 74) | orthorhombic | 0.00 | 0.0000 | -7.076 | 6.16 |
| P1 (No. 1) | triclinic | 0.10 | 0.0194 | -7.057 | 5.92 |
| — | — | 0.50 | 0.0320 | -1.524 | — |
| Imma (No. 74) | orthorhombic | 0.00 | 0.1731 | -1.152 | — |
| — | — | 0.00 | 0.1901 | -1.365 | — |
| P1 (No. 1) | triclinic | 0.00 | 0.4484 | -6.628 | 5.92 |
| Fd-3m (No. 227) | cubic | — | — | — | — |
| Imma (No. 74) | orthorhombic | — | — | — | 6.14 |
| Imma (No. 74) | orthorhombic | — | — | — | 5.92 |
| Imma (No. 74) | orthorhombic | — | — | — | 6.37 |
Synthesis Routes
Literature-extracted synthesis procedures targeting Co2SnO4.
Applications
Where Co2SnO4 is used.
Frequently Asked Questions
Common questions about Co2SnO4, answered from cross-validated data.
What is Co2SnO4?
Co2SnO4 is a stable, semimetallic oxide material primarily investigated for its catalytic activity in oxygen-evolution reactions.
What is Co2SnO4 used for?
What is the band gap of Co2SnO4?
Is Co2SnO4 a metal, semiconductor, or insulator?
Is Co2SnO4 thermodynamically stable?
What is the crystal structure of Co2SnO4?
How many polymorphs of Co2SnO4 are known?
How is Co2SnO4 synthesized?
What elements does Co2SnO4 contain?
Where does the data for Co2SnO4 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the well-known layered cathode materials such as LiCoO2 or LiNiO2, which are primarily utilized for lithium-ion intercalation, Co2SnO4 functions as a semimetallic catalyst. While perovskite-structured members like LaMnO3 are widely recognized for their catalytic activity, Co2SnO4 offers a distinct structural and electronic profile that provides a different approach to optimizing oxygen-evolution performance.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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