Pt2Te2
Pt2Te2 is a thermodynamically stable, metallic platinum-telluride alloy used in research for its potential catalytic properties.
About Pt2Te2
Pt2Te2 is a metallic platinum-group alloy that occupies a stable position on the convex hull, indicating significant thermodynamic robustness. Its structural integrity and electronic properties make it a subject of interest for advanced materials science and catalytic applications.
With extensive documentation across multiple databases, this compound serves as a critical reference point for platinum-telluride systems. Its metallic nature facilitates efficient charge transport, which is essential for its potential role in high-performance catalytic processes.
Key Properties
Cross-validated computational properties for Pt2Te2, 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 Pt2Te2, 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-3m (No. 166) | trigonal | 0.00 | 0.0000 | -38.853 | 11.32 |
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.1383 | -38.715 | 12.03 |
| P63/mmc (No. 194) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 7.40 |
| P4/nmm (No. 129) | — | — | — | — | — |
| P4/nmm (No. 129) | — | — | — | — | — |
| P63mc (No. 186) | — | — | — | — | — |
Applications
Where Pt2Te2 is used.
Frequently Asked Questions
Common questions about Pt2Te2, answered from cross-validated data.
What is Pt2Te2?
Pt2Te2 is a thermodynamically stable, metallic platinum-telluride alloy used in research for its potential catalytic properties.
What is Pt2Te2 used for?
What is the band gap of Pt2Te2?
Is Pt2Te2 a metal, semiconductor, or insulator?
Is Pt2Te2 thermodynamically stable?
What is the crystal structure of Pt2Te2?
What is the density of Pt2Te2?
How many polymorphs of Pt2Te2 are known?
What elements does Pt2Te2 contain?
Where does the data for Pt2Te2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloy catalysts, Pt2Te2 distinguishes itself through its high thermodynamic stability compared to more complex or metastable phases like As2Pt or Ga2Ru. While many members of this class are explored for specific surface reactivity, Pt2Te2 provides a reliable structural baseline for studying the metallic behavior inherent in platinum-based binary alloys.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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