Al4O8Pb2
Al4O8Pb2 is a thermodynamically stable, wide-gap insulating spinel oxide used in advanced materials and catalytic research.
About Al4O8Pb2
Al4O8Pb2 is a complex spinel oxide characterized by its wide-gap insulating electronic structure. As a thermodynamically stable phase residing on the convex hull, it represents a robust crystalline arrangement within the broader family of mixed-metal oxides. Its structural integrity makes it a subject of interest for researchers investigating stable catalytic frameworks. The material is primarily utilized in solid-state chemistry and materials science research, where its specific atomic configuration provides a unique platform for studying oxide-based catalytic processes. Its stability ensures that it maintains its structural identity under various experimental conditions, facilitating its role as a reliable model system for theoretical and practical investigations.
Key Properties
Cross-validated computational properties for Al4O8Pb2, 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 Al4O8Pb2, 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. |
|---|---|---|---|---|---|
| Ama2 (No. 40) | orthorhombic | 3.94 | 0.0000 | -7.322 | 5.44 |
| Ama2 (No. 40) | — | — | — | — | — |
| — | — | — | — | — | 4.25 |
| Ama2 (No. 40) | — | — | — | — | — |
| Ama2 (No. 40) | — | — | — | — | — |
| Ama2 (No. 40) | — | — | — | — | — |
Applications
Where Al4O8Pb2 is used.
Frequently Asked Questions
Common questions about Al4O8Pb2, answered from cross-validated data.
What is Al4O8Pb2?
Al4O8Pb2 is a thermodynamically stable, wide-gap insulating spinel oxide used in advanced materials and catalytic research.
What is Al4O8Pb2 used for?
What is the band gap of Al4O8Pb2?
Is Al4O8Pb2 a metal, semiconductor, or insulator?
Is Al4O8Pb2 thermodynamically stable?
What is the crystal structure of Al4O8Pb2?
What is the density of Al4O8Pb2?
How many polymorphs of Al4O8Pb2 are known?
What elements does Al4O8Pb2 contain?
Where does the data for Al4O8Pb2 come from?
How It Compares
Within the spinel oxide catalysts class.
Within the diverse class of spinel and transition metal oxides, Al4O8Pb2 distinguishes itself through its insulating nature, contrasting with the more conductive or semiconducting behavior seen in members like LaNiO3 or LaMnO3. While simpler oxides like Al2O3 or ZnO are frequently employed for their basic catalytic properties, Al4O8Pb2 offers a more complex structural environment that bridges the gap between simple binary oxides and more intricate ternary spinel systems like MgAl2O4.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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