FeMoO4
Iron(II) molybdate · Ferrous molybdate
Iron(II) molybdate is a crystalline inorganic compound composed of iron, molybdenum, and oxygen. It is primarily studied for its potential roles in catalytic processes and as a precursor material for advanced electronic or magnetic ceramics.
Key Properties
Cross-validated computational properties for Iron(II) molybdate, 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 FeMoO4, 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/m (No. 12) | monoclinic | 2.04 | 0.0004 | -8.393 | 4.49 |
| C2/m (No. 12) | monoclinic | 1.51 | 0.0091 | -8.384 | 4.40 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.11 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.91 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.44 |
| C2/m (No. 12) | — | — | — | — | — |
Applications
Where Iron(II) molybdate is used.
Frequently Asked Questions
Common questions about Iron(II) molybdate, answered from cross-validated data.
What is FeMoO4?
Iron(II) molybdate is a crystalline inorganic compound composed of iron, molybdenum, and oxygen. It is primarily studied for its potential roles in catalytic processes and as a precursor material for advanced electronic or magnetic ceramics.
What is FeMoO4 used for?
What is the band gap of FeMoO4?
Is FeMoO4 a metal, semiconductor, or insulator?
Is FeMoO4 thermodynamically stable?
What is the crystal structure of FeMoO4?
What is the density of FeMoO4?
How many polymorphs of FeMoO4 are known?
What elements does FeMoO4 contain?
Where does the data for FeMoO4 come from?
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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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