Ag3Pt
Ag3Pt is a metallic silver-platinum alloy that is likely synthesizable and serves as a candidate material for catalytic applications.
About Ag3Pt
Ag3Pt is a metallic intermetallic compound composed of silver and platinum. As a member of the platinum-group alloy catalyst family, it exhibits characteristic electronic properties defined by its metallic nature, lacking a band gap. Its structural configuration is supported by a significant body of reported data across multiple databases, highlighting its relevance in materials science research.
This compound is considered near-hull stable, suggesting it is a viable candidate for experimental synthesis and practical application. Its unique composition allows it to leverage the synergistic effects between silver and platinum, which are often sought after to tune the surface reactivity and durability of catalytic materials in demanding chemical environments.
Key Properties
Cross-validated computational properties for Ag3Pt, 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 Ag3Pt, 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. |
|---|---|---|---|---|---|
| Pm-3m (No. 221) | cubic | 0.00 | 0.0208 | -28.909 | 12.91 |
| Pm-3m (No. 221) | Cubic | — | — | — | 12.46 |
| Pm-3m (No. 221) | Cubic | — | — | — | 13.39 |
| Pm-3m (No. 221) | Cubic | — | — | — | 12.92 |
| Pm-3m (No. 221) | — | — | — | — | — |
| Pm-3m (No. 221) | — | — | — | — | — |
| — | — | — | — | — | 12.54 |
| Cmcm (No. 63) | — | — | — | — | — |
| — | — | — | — | — | 7.04 |
| — | — | — | — | — | 7.04 |
Applications
Where Ag3Pt is used.
Frequently Asked Questions
Common questions about Ag3Pt, answered from cross-validated data.
What is Ag3Pt?
Ag3Pt is a metallic silver-platinum alloy that is likely synthesizable and serves as a candidate material for catalytic applications.
What is Ag3Pt used for?
What is the band gap of Ag3Pt?
Is Ag3Pt a metal, semiconductor, or insulator?
Is Ag3Pt thermodynamically stable?
What is the crystal structure of Ag3Pt?
What is the density of Ag3Pt?
How many polymorphs of Ag3Pt are known?
What elements does Ag3Pt contain?
Where does the data for Ag3Pt come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse class of platinum-group alloy catalysts, Ag3Pt occupies a distinct position compared to more complex or highly reactive siblings like As2Pt or Ga2Ru. While many members of this group are optimized for specific electronic or structural motifs, Ag3Pt represents a simpler binary system that serves as a fundamental model for understanding how silver-platinum interactions influence catalytic performance relative to more intricate intermetallics.
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).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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