K2O
Potassium oxide · Dipotassium oxide
Potassium oxide is a stable, semiconducting inorganic compound consisting of potassium and oxygen that is widely used as a chemical precursor.
About Potassium oxide
Potassium oxide is a binary inorganic compound that exists as a thermodynamically stable phase on the convex hull. As a semiconducting material, it plays a critical role in various chemical processes and serves as a fundamental building block in alkali metal chemistry.
Due to its high reactivity and specific electronic character, this compound is primarily utilized as a precursor in the synthesis of more complex potassium-containing materials. It remains a subject of significant interest in materials science research, supported by a vast array of reported structural configurations.
Key Properties
Cross-validated computational properties for Potassium oxide, 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 Potassium oxide is used.
Frequently Asked Questions
Common questions about Potassium oxide, answered from cross-validated data.
What is K2O?
Potassium oxide is a stable, semiconducting inorganic compound consisting of potassium and oxygen that is widely used as a chemical precursor.
What is K2O used for?
What is the band gap of K2O?
Is K2O a metal, semiconductor, or insulator?
Is K2O thermodynamically stable?
How many polymorphs of K2O are known?
What elements does K2O contain?
Where does the data for K2O come from?
How It Compares
As a foundational alkali metal oxide, this compound serves as a primary reference point for understanding the behavior of group one oxides, establishing the baseline for reactivity and structural stability within its chemical class.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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