AlPO4
Aluminum phosphate · Berlinite
Aluminum phosphate is a stable, insulating inorganic compound widely utilized in catalysis and ceramic engineering.
About Aluminum phosphate
Aluminum phosphate is a robust, wide-gap insulating material that exists in a highly stable state. Its structural versatility is evidenced by the extensive variety of reported crystal arrangements, making it a foundation for complex inorganic chemistry research.
Due to its inherent stability, this compound serves as a critical component in various industrial applications, particularly where thermal and chemical resilience are required. It is widely utilized in the development of specialized catalysts and as a structural precursor in material science.
Key Properties
Cross-validated computational properties for Aluminum phosphate, 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 AlPO4, 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. |
|---|---|---|---|---|---|
| P3121 (No. 152) | trigonal | 5.61 | 0.0000 | -7.953 | 2.62 |
| P3221 (No. 154) | trigonal | 5.62 | 0.0001 | -7.953 | 2.61 |
| P2/c (No. 13) | monoclinic | 5.64 | 0.0022 | -7.950 | 2.64 |
| I-4 (No. 82) | tetragonal | 5.67 | 0.0067 | -7.946 | 2.18 |
| P21 (No. 4) | monoclinic | 5.49 | 0.0075 | -7.945 | 2.21 |
| C2221 (No. 20) | orthorhombic | 5.47 | 0.0077 | -7.945 | 2.33 |
| P6422 (No. 181) | hexagonal | 5.49 | 0.0110 | -7.942 | 2.38 |
| C2 (No. 5) | monoclinic | 5.46 | 0.0138 | -7.939 | 2.11 |
| R-3 (No. 148) | trigonal | 5.67 | 0.0142 | -7.938 | 1.93 |
| Pnn2 (No. 34) | orthorhombic | 5.73 | 0.0167 | -7.936 | 1.65 |
| Iba2 (No. 45) | orthorhombic | 5.49 | 0.0172 | -7.935 | 1.76 |
| P21 (No. 4) | monoclinic | 5.65 | 0.0174 | -7.935 | 1.80 |
Synthesis Routes
Literature-extracted synthesis procedures targeting AlPO4.
Applications
Where Aluminum phosphate is used.
Frequently Asked Questions
Common questions about Aluminum phosphate, answered from cross-validated data.
What is AlPO4?
Aluminum phosphate is a stable, insulating inorganic compound widely utilized in catalysis and ceramic engineering.
What is AlPO4 used for?
What is the band gap of AlPO4?
Is AlPO4 a metal, semiconductor, or insulator?
Is AlPO4 thermodynamically stable?
What is the crystal structure of AlPO4?
What is the density of AlPO4?
How many polymorphs of AlPO4 are known?
How is AlPO4 synthesized?
What elements does AlPO4 contain?
Where does the data for AlPO4 come from?
How It Compares
As a highly stable and well-documented material, aluminum phosphate represents a benchmark for structural complexity within its class, offering predictable insulating behavior that makes it a preferred choice for high-performance applications.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
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