Mn1Rh1Zn2
Mn1Rh1Zn2 is a semimetallic ternary alloy containing manganese, rhodium, and zinc that is studied for its catalytic potential.
About Mn1Rh1Zn2
Mn1Rh1Zn2 is a complex ternary intermetallic compound classified within the platinum-group alloy catalysts. Characterized by a near-zero-gap electronic structure, it functions as a semimetallic material that bridges the gap between metallic conductors and semiconductors.
While this compound exhibits structural diversity with numerous reported configurations, it is identified as being thermodynamically unstable relative to its constituent elements. Its role in catalytic applications is defined by its specific atomic arrangement and electronic density, which influence its potential surface reactivity.
Key Properties
Cross-validated computational properties for Mn1Rh1Zn2, 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 Mn1Rh1Zn2, 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 | 0.03 | 2.2726 | -12.209 | 0.58 |
| P2/m (No. 10) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| Pm (No. 6) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Mn1Rh1Zn2 is used.
Frequently Asked Questions
Common questions about Mn1Rh1Zn2, answered from cross-validated data.
What is Mn1Rh1Zn2?
Mn1Rh1Zn2 is a semimetallic ternary alloy containing manganese, rhodium, and zinc that is studied for its catalytic potential.
What is Mn1Rh1Zn2 used for?
What is the band gap of Mn1Rh1Zn2?
Is Mn1Rh1Zn2 a metal, semiconductor, or insulator?
Is Mn1Rh1Zn2 thermodynamically stable?
What is the crystal structure of Mn1Rh1Zn2?
What is the density of Mn1Rh1Zn2?
How many polymorphs of Mn1Rh1Zn2 are known?
What elements does Mn1Rh1Zn2 contain?
Where does the data for Mn1Rh1Zn2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse landscape of platinum-group alloys, Mn1Rh1Zn2 stands out for its specific ternary composition compared to binary counterparts like LaRh or BaPd. While many members of this class are optimized for high-stability applications, this compound represents a more metastable phase, offering a distinct structural profile that contrasts with the more robust, stable binary systems like GeRu.
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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