Pd1Pt1Sr2
Pd1Pt1Sr2 is a metastable semiconducting intermetallic alloy composed of palladium, platinum, and strontium.
About Pd1Pt1Sr2
Pd1Pt1Sr2 is a specialized intermetallic compound belonging to the platinum-group alloy family. Characterized by its semiconducting electronic nature, this material represents a complex arrangement of palladium, platinum, and strontium atoms that requires precise synthesis conditions due to its metastable state.
Its significance lies in the intersection of precious metal chemistry and alkaline earth metal structural motifs. While its metastability poses challenges for large-scale industrial deployment, it remains a subject of intense interest for researchers aiming to tune catalytic performance through electronic structure modification.
Key Properties
Cross-validated computational properties for Pd1Pt1Sr2, aggregated across 2 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 Pd1Pt1Sr2, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0566 | -4.308 | 7.75 |
| Immm (No. 71) | orthorhombic | 1.09 | 1.4829 | -2.881 | 0.65 |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Pd1Pt1Sr2 is used.
Frequently Asked Questions
Common questions about Pd1Pt1Sr2, answered from cross-validated data.
What is Pd1Pt1Sr2?
Pd1Pt1Sr2 is a metastable semiconducting intermetallic alloy composed of palladium, platinum, and strontium.
What is Pd1Pt1Sr2 used for?
What is the band gap of Pd1Pt1Sr2?
Is Pd1Pt1Sr2 a metal, semiconductor, or insulator?
Is Pd1Pt1Sr2 thermodynamically stable?
What is the crystal structure of Pd1Pt1Sr2?
What is the density of Pd1Pt1Sr2?
How many polymorphs of Pd1Pt1Sr2 are known?
What elements does Pd1Pt1Sr2 contain?
Where does the data for Pd1Pt1Sr2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the broader landscape of platinum-group alloys, Pd1Pt1Sr2 occupies a distinct niche compared to more conventional metallic phases like LaRh or GeRu. Unlike its more thermodynamically robust siblings, this compound exhibits semiconducting behavior, positioning it as a specialized candidate for applications where electronic band structure control is prioritized over simple metallic conductivity.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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