Fe2Ge2O6
Fe2Ge2O6 is a semiconducting iron-germanium oxide being studied for its potential utility as an oxygen-evolution catalyst.
About Fe2Ge2O6
Fe2Ge2O6 is a semiconducting oxide that sits near the thermodynamic hull, suggesting it is a viable candidate for experimental synthesis and material characterization. As a member of the oxygen-evolution catalyst class, it leverages its electronic structure to facilitate complex redox reactions essential for sustainable energy conversion technologies.
Its structural versatility is highlighted by a significant number of reported configurations across major materials databases. This diversity in atomic arrangement provides a foundation for tuning its catalytic performance, making it a subject of interest for researchers seeking alternatives to traditional precious metal-based catalysts in electrochemical systems.
Key Properties
Cross-validated computational properties for Fe2Ge2O6, aggregated across 4 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 Fe2Ge2O6, 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. |
|---|---|---|---|---|---|
| C2/c (No. 15) | monoclinic | 1.96 | 0.0122 | -7.504 | 5.19 |
| C2/c (No. 15) | monoclinic | 0.00 | 0.1764 | -7.003 | 4.41 |
| P21/c (No. 14) | monoclinic | 0.07 | 0.1806 | -6.998 | 4.41 |
| I4/mcm (No. 140) | — | — | — | — | — |
| — | — | — | — | — | 5.21 |
| — | — | — | — | — | 4.76 |
| R3c (No. 161) | — | — | — | — | — |
| R-3 (No. 148) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 0.68 |
| R3c (No. 161) | — | — | — | — | — |
| R3c (No. 161) | — | — | — | — | — |
Applications
Where Fe2Ge2O6 is used.
Frequently Asked Questions
Common questions about Fe2Ge2O6, answered from cross-validated data.
What is Fe2Ge2O6?
Fe2Ge2O6 is a semiconducting iron-germanium oxide being studied for its potential utility as an oxygen-evolution catalyst.
What is Fe2Ge2O6 used for?
What is the band gap of Fe2Ge2O6?
Is Fe2Ge2O6 a metal, semiconductor, or insulator?
Is Fe2Ge2O6 thermodynamically stable?
What is the crystal structure of Fe2Ge2O6?
What is the density of Fe2Ge2O6?
How many polymorphs of Fe2Ge2O6 are known?
What elements does Fe2Ge2O6 contain?
Where does the data for Fe2Ge2O6 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the well-established battery cathode materials such as LiCoO2 or LiMn2O4, Fe2Ge2O6 represents a more exploratory entry into the oxide catalyst space. While compounds like LaMnO3 and BiFeO3 are widely recognized for their distinct magnetic and catalytic properties, Fe2Ge2O6 offers a unique germanium-based framework that differentiates its electronic behavior from the more conventional transition-metal-only oxides like NiO.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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