HRh
HRh is a metastable metallic compound composed of rhodium and hydrogen.
About HRh
HRh is a metastable rhodium hydride compound characterized by its metallic electronic nature. As a binary hydride, it represents a specialized system where hydrogen is integrated into a rhodium metal lattice, influencing the structural and electronic properties of the resulting phase.
This material is of significant interest in high-pressure physics and catalysis research, where the interaction between hydrogen and transition metals is fundamental. Its existence as a metastable phase highlights the complex phase space of metal-hydrogen systems and their potential for unique chemical behavior.
Key Properties
Cross-validated computational properties for HRh, 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.
Applications
Where HRh is used.
Frequently Asked Questions
Common questions about HRh, answered from cross-validated data.
What is HRh?
HRh is a metastable metallic compound composed of rhodium and hydrogen.
What is HRh used for?
What is the band gap of HRh?
Is HRh a metal, semiconductor, or insulator?
Is HRh thermodynamically stable?
How many polymorphs of HRh are known?
What elements does HRh contain?
Where does the data for HRh come from?
How It Compares
As a metastable rhodium hydride, HRh occupies a niche position in transition metal hydride chemistry. Unlike more stable, well-characterized hydrides, its metastable nature makes it a subject of intense structural investigation, reflecting the broader challenges of stabilizing hydrogen-rich phases in transition metal systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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