Al3Pt5
Al3Pt5 is a thermodynamically stable intermetallic alloy composed of aluminum and platinum that is primarily studied for its potential in catalytic applications.
About Al3Pt5
Al3Pt5 is a robust intermetallic compound belonging to the class of platinum-group alloy catalysts. Characterized by its metallic electronic structure, this material is recognized for its thermodynamic stability, sitting directly on the convex hull of its phase space.
Its structural integrity and composition make it a subject of significant interest in catalysis research. With numerous reported structures across multiple databases, it represents a well-documented phase that provides a stable foundation for investigating alloy-based catalytic performance.
Key Properties
Cross-validated computational properties for Al3Pt5, aggregated across 5 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 Al3Pt5, 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. |
|---|---|---|---|---|---|
| Pbam (No. 55) | orthorhombic | 0.00 | 0.0000 | -35.684 | 15.08 |
| Cmmm (No. 65) | — | — | — | — | — |
| Pbam (No. 55) | — | — | — | — | — |
| Cm (No. 8) | Monoclinic | — | — | — | 11.87 |
| Pbam (No. 55) | Orthorhombic | — | — | — | 15.83 |
| P3m1 (No. 156) | Trigonal | — | — | — | 13.14 |
| P3m1 (No. 156) | Trigonal | — | — | — | 12.65 |
| Pbam (No. 55) | Orthorhombic | — | — | — | 14.71 |
| Pbam (No. 55) | Orthorhombic | — | — | — | 15.08 |
| Cmmm (No. 65) | — | — | — | — | — |
Applications
Where Al3Pt5 is used.
Frequently Asked Questions
Common questions about Al3Pt5, answered from cross-validated data.
What is Al3Pt5?
Al3Pt5 is a thermodynamically stable intermetallic alloy composed of aluminum and platinum that is primarily studied for its potential in catalytic applications.
What is Al3Pt5 used for?
What is the band gap of Al3Pt5?
Is Al3Pt5 a metal, semiconductor, or insulator?
Is Al3Pt5 thermodynamically stable?
What is the crystal structure of Al3Pt5?
What is the density of Al3Pt5?
How many polymorphs of Al3Pt5 are known?
What elements does Al3Pt5 contain?
Where does the data for Al3Pt5 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloys, Al3Pt5 distinguishes itself through its high thermodynamic stability compared to more complex or metastable compounds like P3Ru or BaPd. While many members of this class are explored for specific electronic tuning, Al3Pt5 serves as a reliable benchmark for structural stability in aluminum-platinum systems.
Related Compounds
Other Platinum-Group Alloy 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).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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