Al2O6Pr2
Al2O6Pr2 is a thermodynamically stable, insulating oxide compound utilized in materials research for its structural versatility.
About Al2O6Pr2
Al2O6Pr2 is a thermodynamically stable oxide that belongs to the broader class of spinel-related materials. As a wide-gap insulator, it exhibits robust electronic characteristics that make it a subject of interest for fundamental materials research and structural studies.
Its presence on the convex hull underscores its stability, marking it as a significant candidate for investigation within complex oxide systems. The material is characterized by a high degree of structural diversity, supported by multiple reported configurations that highlight its versatile coordination environment.
Key Properties
Cross-validated computational properties for Al2O6Pr2, 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 Al2O6Pr2, 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. |
|---|---|---|---|---|---|
| R-3c (No. 167) | trigonal | 4.13 | 0.0000 | -8.333 | 6.69 |
| Pm-3m (No. 221) | cubic | 2.88 | 0.0180 | -8.315 | 6.75 |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
Applications
Where Al2O6Pr2 is used.
Frequently Asked Questions
Common questions about Al2O6Pr2, answered from cross-validated data.
What is Al2O6Pr2?
Al2O6Pr2 is a thermodynamically stable, insulating oxide compound utilized in materials research for its structural versatility.
What is Al2O6Pr2 used for?
What is the band gap of Al2O6Pr2?
Is Al2O6Pr2 a metal, semiconductor, or insulator?
Is Al2O6Pr2 thermodynamically stable?
What is the crystal structure of Al2O6Pr2?
What is the density of Al2O6Pr2?
How many polymorphs of Al2O6Pr2 are known?
What elements does Al2O6Pr2 contain?
Where does the data for Al2O6Pr2 come from?
How It Compares
Within the spinel oxide catalysts class.
Unlike more common transition metal-based spinel catalysts such as NiO or ZnO, which are often studied for their redox activity and conductivity, Al2O6Pr2 functions as a wide-gap insulating framework. While it shares the structural complexity found in perovskite-related oxides like LaAlO3, its specific stoichiometry and electronic nature distinguish it as a specialized member of the spinel oxide family, offering a unique platform for catalytic design.
Related Compounds
Other Spinel Oxide 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).
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