Mg2Ni1Pt1
Mg2Ni1Pt1 is a semiconducting ternary alloy composed of magnesium, nickel, and platinum that exists as a metastable phase within the platinum-group catalyst class.
About Mg2Ni1Pt1
Mg2Ni1Pt1 is a complex ternary alloy within the platinum-group catalyst family, characterized by its semiconducting electronic nature. Its unique combination of magnesium, nickel, and platinum positions it as a subject of interest for researchers investigating specialized catalytic surfaces and electronic properties in intermetallic systems. Given its position above the thermodynamic hull, this compound is considered metastable, suggesting that its synthesis requires precise control over processing conditions. The existence of numerous reported structural variations highlights its complexity and the ongoing interest in its potential role within advanced catalytic applications.
Key Properties
Cross-validated computational properties for Mg2Ni1Pt1, 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 Mg2Ni1Pt1, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 1.57 | 2.2279 | -2.066 | 0.66 |
| Cmmm (No. 65) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
Applications
Where Mg2Ni1Pt1 is used.
Frequently Asked Questions
Common questions about Mg2Ni1Pt1, answered from cross-validated data.
What is Mg2Ni1Pt1?
Mg2Ni1Pt1 is a semiconducting ternary alloy composed of magnesium, nickel, and platinum that exists as a metastable phase within the platinum-group catalyst class.
What is Mg2Ni1Pt1 used for?
What is the band gap of Mg2Ni1Pt1?
Is Mg2Ni1Pt1 a metal, semiconductor, or insulator?
Is Mg2Ni1Pt1 thermodynamically stable?
What is the crystal structure of Mg2Ni1Pt1?
What is the density of Mg2Ni1Pt1?
How many polymorphs of Mg2Ni1Pt1 are known?
What elements does Mg2Ni1Pt1 contain?
Where does the data for Mg2Ni1Pt1 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Unlike more stable members of the platinum-group alloy class such as P3Ru or LaRh, Mg2Ni1Pt1 is distinguished by its metastable status and semiconducting behavior. While many of its siblings are recognized for their robust stability in industrial catalysis, this compound represents a more challenging, high-energy phase that offers a different structural landscape for exploring catalytic activity.
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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