Rb2CoO3
Rb2CoO3 is a thermodynamically stable semiconducting oxide used in the study of oxygen-evolution catalysis.

About Rb2CoO3
Rb2CoO3 is a semiconducting oxide that sits on the convex hull, indicating significant thermodynamic stability. As a member of the oxide oxygen-evolution catalyst family, it is a subject of interest for researchers investigating efficient electrochemical water splitting and energy conversion processes.
The compound is characterized by its distinct electronic structure, which plays a critical role in its catalytic activity. Its presence in multiple structural databases highlights its importance as a model system for understanding how alkali-metal cobaltates function within complex catalytic environments.
Key Properties
Cross-validated computational properties for Rb2CoO3, aggregated across 3 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 Rb2CoO3 is used.
Frequently Asked Questions
Common questions about Rb2CoO3, answered from cross-validated data.
What is Rb2CoO3?
Rb2CoO3 is a thermodynamically stable semiconducting oxide used in the study of oxygen-evolution catalysis.
What is Rb2CoO3 used for?
What is the band gap of Rb2CoO3?
Is Rb2CoO3 a metal, semiconductor, or insulator?
Is Rb2CoO3 thermodynamically stable?
How many polymorphs of Rb2CoO3 are known?
What elements does Rb2CoO3 contain?
Where does the data for Rb2CoO3 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the widely utilized lithium-based oxides such as LiCoO2 or LiMn2O4, which are staples in battery technology, Rb2CoO3 offers a unique structural perspective due to the larger ionic radius of rubidium. While perovskite-structured materials like LaMnO3 or LaNiO3 are frequently studied for their high-performance catalytic surfaces, Rb2CoO3 provides a different coordination environment that expands the chemical space available for designing advanced oxygen-evolution catalysts.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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