Fe4O20Te6
Fe4O20Te6 is a semiconducting iron-tellurium oxide being researched for its potential utility in oxygen-evolution catalytic processes.
About Fe4O20Te6
Fe4O20Te6 is a complex iron-tellurium oxide categorized within the class of oxygen-evolution catalysts. As a semiconducting material, it represents a specialized structural arrangement designed to facilitate electrochemical oxidation processes, though it remains a subject of fundamental study due to its specific electronic configuration.
Because it exists above the thermodynamic hull, this compound is considered metastable, which presents unique challenges and opportunities for synthesis and stabilization. Its role in the broader landscape of catalyst materials is defined by its distinct elemental composition, which differentiates it from more conventional transition metal oxides.
Key Properties
Cross-validated computational properties for Fe4O20Te6, 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 Fe4O20Te6, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 0.40 | 0.2262 | -6.412 | 4.48 |
| No. 0 | unknown | — | — | — | 2.29 |
| — | — | — | — | — | 4.52 |
Applications
Where Fe4O20Te6 is used.
Frequently Asked Questions
Common questions about Fe4O20Te6, answered from cross-validated data.
What is Fe4O20Te6?
Fe4O20Te6 is a semiconducting iron-tellurium oxide being researched for its potential utility in oxygen-evolution catalytic processes.
What is Fe4O20Te6 used for?
What is the band gap of Fe4O20Te6?
Is Fe4O20Te6 a metal, semiconductor, or insulator?
Is Fe4O20Te6 thermodynamically stable?
What is the crystal structure of Fe4O20Te6?
What is the density of Fe4O20Te6?
How many polymorphs of Fe4O20Te6 are known?
What elements does Fe4O20Te6 contain?
Where does the data for Fe4O20Te6 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse family of oxygen-evolution catalysts, Fe4O20Te6 occupies a niche position compared to highly stable and widely utilized materials like NiO or the layered lithium-based oxides such as LiCoO2. While siblings like LaMnO3 and BiFeO3 are frequently studied for their robust perovskite structures, Fe4O20Te6 represents a more complex, less common stoichiometry that highlights the ongoing exploration of non-traditional oxide architectures for catalytic applications.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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