Fe8O20Te4
Fe8O20Te4 is a metastable, semiconducting iron-tellurium oxide investigated for its potential role in oxygen-evolution catalysis.
About Fe8O20Te4
Fe8O20Te4 is a semiconducting oxide that functions within the specialized class of oxygen-evolution catalysts. Its unique composition of iron, oxygen, and tellurium positions it as an intriguing candidate for catalytic research where electronic properties are critical to performance. As a metastable phase, this compound represents a complex structural arrangement that challenges conventional synthesis methods. Its existence across multiple databases highlights its importance as a subject of ongoing investigation in the pursuit of more efficient catalytic materials.
Key Properties
Cross-validated computational properties for Fe8O20Te4, 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 Fe8O20Te4, 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 | 1.89 | 0.0256 | -7.205 | 5.07 |
| P21/c (No. 14) | — | — | — | — | — |
| — | — | — | — | — | 5.08 |
Applications
Where Fe8O20Te4 is used.
Frequently Asked Questions
Common questions about Fe8O20Te4, answered from cross-validated data.
What is Fe8O20Te4?
Fe8O20Te4 is a metastable, semiconducting iron-tellurium oxide investigated for its potential role in oxygen-evolution catalysis.
What is Fe8O20Te4 used for?
What is the band gap of Fe8O20Te4?
Is Fe8O20Te4 a metal, semiconductor, or insulator?
Is Fe8O20Te4 thermodynamically stable?
What is the crystal structure of Fe8O20Te4?
What is the density of Fe8O20Te4?
How many polymorphs of Fe8O20Te4 are known?
What elements does Fe8O20Te4 contain?
Where does the data for Fe8O20Te4 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the highly stable and widely utilized commercial battery materials such as LiCoO2 or LiMn2O4, Fe8O20Te4 is a metastable oxide that occupies a more niche role in catalytic studies. While perovskites like LaMnO3 or BiFeO3 are often explored for their robust structural frameworks, this iron-tellurium oxide offers a distinct chemical environment that differentiates its catalytic behavior from the more traditional transition metal oxides in its class.
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).
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