Ir2Sb2

Ir2Sb2 is a metallic, metastable iridium-antimony alloy used in the study of platinum-group catalytic materials.

Crystal structure of Ir2Sb2
Ground-state structure · Materials Project
Overview

About Ir2Sb2

Ir2Sb2 is a metallic compound belonging to the platinum-group alloy catalyst family. Its electronic structure is characterized by a lack of a band gap, identifying it as a conductor that facilitates efficient charge transfer in catalytic environments. Although it is classified as metastable, the compound exhibits significant structural complexity, as evidenced by its presence across multiple material databases. This structural variety suggests a versatile framework for potential chemical interactions. Researchers value this material for its unique combination of noble metal characteristics and pnictogen-based bonding, which influences its catalytic performance. Its metallic nature makes it a candidate for applications requiring high conductivity and surface reactivity, positioning it as a distinct entry within the broader landscape of iridium-based alloys.

At a glance

Key Properties

Cross-validated computational properties for Ir2Sb2, aggregated across 5 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.081 eV/atom
Best (lowest) across sources

Stability

Metastable
3 DFT sources

Structures

31
5 databases, 15 space groups
Uses

Applications

Where Ir2Sb2 is used.

Catalysis researchMaterials science studiesAdvanced alloy development
Reference

Frequently Asked Questions

Common questions about Ir2Sb2, answered from cross-validated data.

What is Ir2Sb2?

Ir2Sb2 is a metallic, metastable iridium-antimony alloy used in the study of platinum-group catalytic materials.

More questions
What is Ir2Sb2 used for?
Ir2Sb2 is used in catalysis research, materials science studies, and advanced alloy development.
What is the band gap of Ir2Sb2?
Ir2Sb2 is computed to be metallic (no band gap) in the reported DFT structures.
Is Ir2Sb2 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Ir2Sb2 thermodynamically stable?
Ir2Sb2 has a lowest energy above hull of 0.081 eV/atom (metastable).
How many polymorphs of Ir2Sb2 are known?
31 structures of Ir2Sb2 are reported across 5 databases, spanning 15 distinct space groups.
What elements does Ir2Sb2 contain?
Ir2Sb2 contains Ir and Sb (2 elements).
Where does the data for Ir2Sb2 come from?
Ir2Sb2 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the platinum-group alloy catalysts class.

Within the class of platinum-group alloy catalysts, Ir2Sb2 occupies a unique niche compared to more stable or common phases like As2Ir. While many members of this group are studied for their specific stoichiometric arrangements, Ir2Sb2 stands out due to its metastable nature and the high degree of structural polymorphism it exhibits across various databases, offering a different set of surface properties than its more thermodynamically robust siblings.

Explore

Related Compounds

Other Platinum-Group Alloy Catalysts in the database.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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