Hf2Ir1Nb1
Hf2Ir1Nb1 is a metastable, semimetallic ternary alloy containing hafnium, iridium, and niobium, primarily studied for its structural properties in catalyst research.
About Hf2Ir1Nb1
Hf2Ir1Nb1 is a complex intermetallic compound categorized within the platinum-group alloy catalysts. Characterized by a near-zero-gap electronic structure, it behaves as a semimetal, which influences its potential for specialized catalytic and electronic applications. Its structural complexity is evidenced by the numerous reported configurations found in materials databases. As a material that sits above the thermodynamic hull, it is considered metastable. This status suggests that while it is a subject of significant interest for structural analysis, its synthesis requires precise control over processing conditions to stabilize its unique atomic arrangement.
Key Properties
Cross-validated computational properties for Hf2Ir1Nb1, 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.
Applications
Where Hf2Ir1Nb1 is used.
Frequently Asked Questions
Common questions about Hf2Ir1Nb1, answered from cross-validated data.
What is Hf2Ir1Nb1?
Hf2Ir1Nb1 is a metastable, semimetallic ternary alloy containing hafnium, iridium, and niobium, primarily studied for its structural properties in catalyst research.
What is Hf2Ir1Nb1 used for?
What is the band gap of Hf2Ir1Nb1?
Is Hf2Ir1Nb1 a metal, semiconductor, or insulator?
Is Hf2Ir1Nb1 thermodynamically stable?
How many polymorphs of Hf2Ir1Nb1 are known?
What elements does Hf2Ir1Nb1 contain?
Where does the data for Hf2Ir1Nb1 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloys, Hf2Ir1Nb1 stands out due to its ternary composition compared to binary counterparts like LaRh or BaPd. While many siblings in this class, such as As2Ir or GeRu, exhibit more conventional stability profiles, Hf2Ir1Nb1 represents a more challenging metastable phase that offers researchers a distinct window into the electronic behavior of transition metal combinations.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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