Bi2Rh
Bi2Rh is a thermodynamically stable metallic alloy composed of bismuth and rhodium that is utilized in the study of platinum-group catalytic materials.
About Bi2Rh
Bi2Rh is a metallic platinum-group alloy that occupies a stable position on the thermodynamic convex hull. As a member of this specialized class of materials, it is characterized by its robust structural integrity and lack of a band gap, which are critical features for its performance in catalytic processes. Its electronic nature makes it a subject of interest for researchers investigating the interplay between bismuth and rhodium in catalytic surface reactions. The compound is well-documented in structural databases, reflecting its significance in the broader study of intermetallic catalysts. It serves as a foundational material for understanding how noble metal alloys can be optimized for specific chemical transformations.
Key Properties
Cross-validated computational properties for Bi2Rh, aggregated across 4 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Bi2Rh. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Applications
Where Bi2Rh is used.
Frequently Asked Questions
Common questions about Bi2Rh, answered from cross-validated data.
What is Bi2Rh?
Bi2Rh is a thermodynamically stable metallic alloy composed of bismuth and rhodium that is utilized in the study of platinum-group catalytic materials.
What is Bi2Rh used for?
What is the band gap of Bi2Rh?
Is Bi2Rh a metal, semiconductor, or insulator?
Is Bi2Rh thermodynamically stable?
How many polymorphs of Bi2Rh are known?
What elements does Bi2Rh contain?
Where does the data for Bi2Rh come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloy catalysts, Bi2Rh stands out for its thermodynamic stability compared to more complex or metastable variants like As2Pt or Ga2Ru. While many members of this class are explored for their specific surface reactivity, Bi2Rh provides a highly stable structural baseline that contrasts with the varied electronic environments found in siblings such as LaRh or IrSe2.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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