NaMnO2
sodium manganese dioxide · sodium manganite
NaMnO2 is a stable, semiconducting layered oxide utilized primarily as a functional material in sodium-ion battery research.
About sodium manganese dioxide
NaMnO2 is a prominent member of the layered sodium transition-metal oxide family, characterized by its semiconducting electronic nature. As a thermodynamically stable phase residing on the convex hull, it maintains structural integrity, which is essential for its role in electrochemical energy storage systems.
Its layered architecture facilitates the reversible intercalation of sodium ions, making it a subject of extensive research for next-generation battery technologies. With numerous reported structures documented across various databases, it remains one of the most thoroughly investigated materials in its class for high-performance cathode applications.
Key Properties
Cross-validated computational properties for sodium manganese dioxide, 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting NaMnO2.
Applications
Where sodium manganese dioxide is used.
Frequently Asked Questions
Common questions about sodium manganese dioxide, answered from cross-validated data.
What is NaMnO2?
NaMnO2 is a stable, semiconducting layered oxide utilized primarily as a functional material in sodium-ion battery research.
What is NaMnO2 used for?
What is the band gap of NaMnO2?
Is NaMnO2 a metal, semiconductor, or insulator?
Is NaMnO2 thermodynamically stable?
How many polymorphs of NaMnO2 are known?
How is NaMnO2 synthesized?
What elements does NaMnO2 contain?
Where does the data for NaMnO2 come from?
How It Compares
Within the layered sodium transition-metal oxides class.
Within the broader family of layered sodium transition-metal oxides, NaMnO2 is distinguished by its favorable thermodynamic stability compared to more complex variants like Na2Ti3O7. While materials such as NaCoO2 are widely recognized for their high conductivity, NaMnO2 offers a more abundant and cost-effective alternative, positioning it as a strategic focus for sustainable energy storage solutions.
Related Compounds
Other Layered Sodium Transition-Metal Oxides in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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