K2CoO2
K2CoO2 is a stable, semiconducting oxide material utilized in the study of oxygen-evolution catalysis for electrochemical applications.
About K2CoO2
K2CoO2 is a semiconducting oxide that sits on the convex hull, indicating significant thermodynamic stability. As a member of the oxide oxygen-evolution catalyst class, it serves as a subject of interest for researchers investigating efficient electrochemical energy conversion processes. Its specific electronic configuration makes it a candidate for studying charge transfer mechanisms essential for water splitting applications. The material is well-documented, with multiple structural configurations identified across various databases, highlighting its importance in materials discovery. It provides a stable platform for exploring how alkali metal incorporation influences the catalytic activity of cobalt-based oxide frameworks.
Key Properties
Cross-validated computational properties for K2CoO2, 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 K2CoO2 is used.
Frequently Asked Questions
Common questions about K2CoO2, answered from cross-validated data.
What is K2CoO2?
K2CoO2 is a stable, semiconducting oxide material utilized in the study of oxygen-evolution catalysis for electrochemical applications.
What is K2CoO2 used for?
What is the band gap of K2CoO2?
Is K2CoO2 a metal, semiconductor, or insulator?
Is K2CoO2 thermodynamically stable?
How many polymorphs of K2CoO2 are known?
What elements does K2CoO2 contain?
Where does the data for K2CoO2 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Within the diverse family of oxide oxygen-evolution catalysts, K2CoO2 distinguishes itself from transition metal-heavy counterparts like LiCoO2 and LaMnO3 through its unique stoichiometry and electronic character. While many class members rely on complex perovskite or spinel structures, K2CoO2 offers a different structural perspective on how alkali-rich environments modulate the catalytic performance of cobalt centers compared to more traditional oxides like NiO.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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