Mn2O8U2

Mn2O8U2 is a semiconducting ternary oxide being studied for its potential role in oxygen-evolution catalytic processes.

Crystal structure of Mn2O8U2 (orthorhombic, Imma (No. 74))
Ground-state structure · Materials Project
Overview

About Mn2O8U2

Mn2O8U2 is a complex ternary oxide categorized within the family of oxygen-evolution catalysts. As a semiconducting material, it represents a unique intersection of manganese and uranium chemistry, offering a distinct electronic profile that researchers explore to understand catalytic activity in electrochemical systems. The compound is characterized by a high degree of structural complexity, with multiple reported configurations across materials databases. Given its position relative to the thermodynamic ground state, it is considered a metastable phase, which makes it a subject of interest for fundamental studies into phase formation and catalytic surface behavior.

At a glance

Key Properties

Cross-validated computational properties for Mn2O8U2, aggregated across 3 databases.

Band Gap

0.62–0.74 eV
Range across DFT structures

Energy Above Hull

0.428 eV/atom
Best (lowest) across sources

Stability

Above hull
2 DFT sources

Structures

5
3 databases, 2 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for Mn2O8U2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Imma (No. 74)orthorhombic0.710.4277-9.3657.78
Imma (No. 74)orthorhombic0.740.4453-9.3487.68
Cmmm (No. 65)orthorhombic0.620.4801-9.3137.27
7.15
Imma (No. 74)
Uses

Applications

Where Mn2O8U2 is used.

Oxygen-evolution catalysis researchElectrochemical energy conversion studies
Reference

Frequently Asked Questions

Common questions about Mn2O8U2, answered from cross-validated data.

What is Mn2O8U2?

Mn2O8U2 is a semiconducting ternary oxide being studied for its potential role in oxygen-evolution catalytic processes.

More questions
What is Mn2O8U2 used for?
Mn2O8U2 is used in oxygen-evolution catalysis research and electrochemical energy conversion studies.
What is the band gap of Mn2O8U2?
Mn2O8U2 has a DFT-computed band gap of 0.62–0.74 eV across 5 reported structures.
Is Mn2O8U2 a metal, semiconductor, or insulator?
With a band gap up to 0.74 eV it is a semiconductor.
Is Mn2O8U2 thermodynamically stable?
Mn2O8U2 has a lowest energy above hull of 0.428 eV/atom (above hull).
What is the crystal structure of Mn2O8U2?
The lowest-energy reported polymorph of Mn2O8U2 is orthorhombic symmetry, space group Imma (No. 74).
What is the density of Mn2O8U2?
The computed density of the ground-state structure of Mn2O8U2 is 7.78 g/cm³.
How many polymorphs of Mn2O8U2 are known?
5 structures of Mn2O8U2 are reported across 3 databases, spanning 2 distinct space groups.
What elements does Mn2O8U2 contain?
Mn2O8U2 contains Mn, O, and U (3 elements).
Where does the data for Mn2O8U2 come from?
Mn2O8U2 data is cross-referenced from materials_project, omat24, aflow.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Within the broader class of oxygen-evolution catalysts, Mn2O8U2 stands out as a specialized, complex oxide compared to more conventional, highly stable transition metal oxides like LiMn2O4 or LaMnO3. While many of its siblings are widely utilized in commercial battery or catalytic applications due to their robust thermodynamic stability, Mn2O8U2 serves as a more niche, exploratory material that challenges standard structural paradigms found in common perovskite or spinel systems.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
  • aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).

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