Li3Pt
Li3Pt is a metallic lithium-platinum alloy that serves as a research-grade material within the platinum-group alloy catalyst family.
About Li3Pt
Li3Pt is a metallic intermetallic compound composed of lithium and platinum. As a member of the platinum-group alloy catalyst class, it exhibits conductive electronic behavior and is considered thermodynamically accessible for synthesis in laboratory environments.
Its structural diversity is evidenced by numerous reported configurations across major materials databases. This high degree of structural data suggests a complex phase space that makes it a compelling candidate for fundamental research into alloy formation and catalytic surface properties.
Key Properties
Cross-validated computational properties for Li3Pt, 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 Li3Pt, 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. |
|---|---|---|---|---|---|
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.0040 | -15.115 | 6.38 |
| Fm-3m (No. 225) | cubic | 0.00 | 0.0241 | -15.095 | 6.59 |
| — | — | — | — | — | 5.38 |
| Fm-3m (No. 225) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| P4mm (No. 99) | Tetragonal | — | — | — | 3.92 |
| P4mm (No. 99) | Tetragonal | — | — | — | 3.45 |
| P4mm (No. 99) | Tetragonal | — | — | — | 3.04 |
| Cmcm (No. 63) | Orthorhombic | — | — | — | 4.31 |
| Fm-3m (No. 225) | Cubic | — | — | — | 6.57 |
| Fm-3m (No. 225) | Cubic | — | — | — | 6.49 |
Applications
Where Li3Pt is used.
Frequently Asked Questions
Common questions about Li3Pt, answered from cross-validated data.
What is Li3Pt?
Li3Pt is a metallic lithium-platinum alloy that serves as a research-grade material within the platinum-group alloy catalyst family.
What is Li3Pt used for?
What is the band gap of Li3Pt?
Is Li3Pt a metal, semiconductor, or insulator?
Is Li3Pt thermodynamically stable?
What is the crystal structure of Li3Pt?
What is the density of Li3Pt?
How many polymorphs of Li3Pt are known?
What elements does Li3Pt contain?
Where does the data for Li3Pt come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloys, Li3Pt distinguishes itself through its high lithium content compared to more noble-metal-rich siblings like As2Pt or GeRu. While many members of this class focus on transition metal combinations, Li3Pt represents a unique intersection of light alkali metal chemistry and heavy platinum-group metal properties, offering a distinct electronic profile compared to the more conventional transition-metal-heavy 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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- mpaloe — Data from mpaloe.
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