Cr2O5
Cr2O5 is a metastable, semiconducting transition metal oxide used in specialized catalytic applications.
About Cr2O5
Cr2O5 is a metastable semiconducting oxide that belongs to the broader family of spinel-related catalysts. Its electronic character and structural complexity make it a subject of significant interest for researchers investigating non-equilibrium phase behavior in transition metal oxides.
Because of its metastable nature, this compound is often studied for its potential to facilitate specific surface reactions that more stable oxides cannot achieve. Its role in catalysis is defined by its ability to provide active sites that are highly sensitive to environmental conditions, making it a specialized candidate for targeted chemical synthesis.
Key Properties
Cross-validated computational properties for Cr2O5, 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.
Applications
Where Cr2O5 is used.
Patent Landscape
1 patent reference Cr2O5 or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 7276226 | Chromium dioxide (CrO2) and composites of chromium dioxide and other oxides of chromium such as CrO2/Cr2O3 and | — | — |
Frequently Asked Questions
Common questions about Cr2O5, answered from cross-validated data.
What is Cr2O5?
Cr2O5 is a metastable, semiconducting transition metal oxide used in specialized catalytic applications.
What is Cr2O5 used for?
What is the band gap of Cr2O5?
Is Cr2O5 a metal, semiconductor, or insulator?
Is Cr2O5 thermodynamically stable?
How many polymorphs of Cr2O5 are known?
What elements does Cr2O5 contain?
Where does the data for Cr2O5 come from?
How It Compares
Within the spinel oxide catalysts class.
Unlike the highly stable and widely utilized MgAl2O4 spinel or the simple binary oxides like NiO and ZnO, Cr2O5 exists in a metastable state that requires careful synthesis control. While siblings such as LaMnO3 or LaNiO3 are frequently employed in stable perovskite-based catalytic cycles, Cr2O5 offers a distinct, more reactive surface environment that differentiates it from the more robust, conventionally stable members of the oxide class.
Related Compounds
Other Spinel Oxide Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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