Co10Ge3O16
Co10Ge3O16 is a semiconducting cobalt germanate oxide being investigated as a potential catalyst for oxygen-evolution reactions.
About Co10Ge3O16
Co10Ge3O16 is a complex semiconducting oxide composed of cobalt, germanium, and oxygen. As a near-hull material, it occupies a favorable position in the thermodynamic landscape, suggesting it is a viable candidate for experimental synthesis and structural characterization.
This compound belongs to the class of oxide oxygen-evolution catalysts, where its electronic properties are leveraged to facilitate electrochemical reactions. Its potential utility stems from the interplay between its cobalt-based framework and the structural stability provided by the germanium-oxygen network.
Key Properties
Cross-validated computational properties for Co10Ge3O16, aggregated across 5 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 Co10Ge3O16. 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 Co10Ge3O16, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 0.80 | 0.0075 | -7.210 | 6.00 |
| — | — | 0.69 | 0.0234 | -1.484 | — |
| R-3m (No. 166) | trigonal | 1.60 | — | -6.077 | 5.76 |
| R-3m (No. 166) | trigonal | — | — | — | 5.98 |
| R-3m (No. 166) | trigonal | — | — | — | 6.19 |
| R-3m (No. 166) | trigonal | — | — | — | 5.78 |
| R-3m (No. 166) | trigonal | — | — | — | 5.99 |
Synthesis Routes
Literature-extracted synthesis procedures targeting Co10Ge3O16.
Applications
Where Co10Ge3O16 is used.
Frequently Asked Questions
Common questions about Co10Ge3O16, answered from cross-validated data.
What is Co10Ge3O16?
Co10Ge3O16 is a semiconducting cobalt germanate oxide being investigated as a potential catalyst for oxygen-evolution reactions.
What is Co10Ge3O16 used for?
What is the band gap of Co10Ge3O16?
Is Co10Ge3O16 a metal, semiconductor, or insulator?
Is Co10Ge3O16 thermodynamically stable?
What is the crystal structure of Co10Ge3O16?
What is the density of Co10Ge3O16?
How many polymorphs of Co10Ge3O16 are known?
How is Co10Ge3O16 synthesized?
What elements does Co10Ge3O16 contain?
Where does the data for Co10Ge3O16 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse family of oxide oxygen-evolution catalysts, Co10Ge3O16 offers a distinct chemical composition compared to more traditional transition metal oxides like NiO or LiCoO2. While materials such as LaMnO3 and BiFeO3 are widely studied for their perovskite-based catalytic activity, this cobalt germanate represents a more specialized structural motif that expands the chemical space available for designing efficient oxygen-evolution systems.
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)
- aflow — Data from AFLOW (aflow.org). Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012). (CC-BY-4.0)
- 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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