W3O8
This compound is an intermediate tungsten oxide phase that forms during the reduction or oxidation processes of tungsten materials. It is primarily studied for its structural properties in solid-state chemistry and its role in the synthesis of various tungsten-based catalysts and functional materials.
Key Properties
Cross-validated computational properties for W3O8, 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 W3O8, 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. |
|---|---|---|---|---|---|
| Cm (No. 8) | monoclinic | 0.00 | 0.0093 | -9.272 | 8.38 |
| Cmmm (No. 65) | orthorhombic | 0.00 | 0.0243 | -9.257 | 8.90 |
| Pbam (No. 55) | orthorhombic | 0.00 | 0.0720 | -9.209 | 7.67 |
| P2/c (No. 13) | monoclinic | 1.83 | 0.0906 | -9.191 | 7.89 |
| P-1 (No. 2) | triclinic | 2.73 | 0.1481 | -9.133 | 6.36 |
| C2/m (No. 12) | monoclinic | 1.62 | 0.3123 | -8.969 | 6.71 |
| P63mc (No. 186) | hexagonal | 1.56 | 0.3726 | -8.909 | 6.72 |
| Cmmm (No. 65) | — | — | — | — | — |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 8.86 |
| No. 0 | unknown | — | — | — | 2.06 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 8.42 |
| P2/c (No. 13) | Monoclinic | — | — | — | 8.30 |
Applications
Where W3O8 is used.
Frequently Asked Questions
Common questions about W3O8, answered from cross-validated data.
What is W3O8?
This compound is an intermediate tungsten oxide phase that forms during the reduction or oxidation processes of tungsten materials. It is primarily studied for its structural properties in solid-state chemistry and its role in the synthesis of various tungsten-based catalysts and functional materials.
What is W3O8 used for?
What is the band gap of W3O8?
Is W3O8 a metal, semiconductor, or insulator?
Is W3O8 thermodynamically stable?
What is the crystal structure of W3O8?
What is the density of W3O8?
How many polymorphs of W3O8 are known?
What elements does W3O8 contain?
Where does the data for W3O8 come from?
Related Compounds
Other Electrochromic and Refractory-Metal Oxides in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
Analyze W3O8 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →