MgMn4O8

MgMn4O8 is a metastable semiconducting oxide catalyst designed for use in oxygen-evolution reactions.

Crystal structure of MgMn4O8
Ground-state structure · Materials Project
Overview

About MgMn4O8

MgMn4O8 is a semiconducting oxide that functions as a catalyst for oxygen-evolution processes. Its specific electronic structure and metastable nature make it an intriguing candidate for research into efficient electrochemical energy conversion systems.

The material is characterized by a complex structural framework that supports its catalytic activity. Its role within the broader family of oxygen-evolution catalysts is defined by its ability to facilitate critical chemical transformations while maintaining stability under experimental conditions.

At a glance

Key Properties

Cross-validated computational properties for MgMn4O8, aggregated across 2 databases.

Band Gap

0.09–0.77 eV
Range across DFT structures

Energy Above Hull

0.040 eV/atom
Best (lowest) across sources

Stability

Metastable
1 DFT source

Structures

32
2 databases, 11 space groups
Uses

Applications

Where MgMn4O8 is used.

Oxygen-evolution catalysisElectrochemical energy conversionMaterials research
Reference

Frequently Asked Questions

Common questions about MgMn4O8, answered from cross-validated data.

What is MgMn4O8?

MgMn4O8 is a metastable semiconducting oxide catalyst designed for use in oxygen-evolution reactions.

More questions
What is MgMn4O8 used for?
MgMn4O8 is used in oxygen-evolution catalysis, electrochemical energy conversion, and materials research.
What is the band gap of MgMn4O8?
MgMn4O8 has a DFT-computed band gap of 0.09–0.77 eV across 32 reported structures.
Is MgMn4O8 a metal, semiconductor, or insulator?
With a band gap up to 0.77 eV it is a semiconductor.
Is MgMn4O8 thermodynamically stable?
MgMn4O8 has a lowest energy above hull of 0.040 eV/atom (metastable).
How many polymorphs of MgMn4O8 are known?
32 structures of MgMn4O8 are reported across 2 databases, spanning 11 distinct space groups.
What elements does MgMn4O8 contain?
MgMn4O8 contains Mg, Mn, and O (3 elements).
Where does the data for MgMn4O8 come from?
MgMn4O8 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Unlike the highly stable and widely utilized LiMn2O4, MgMn4O8 exists in a metastable state, which provides unique pathways for catalytic activity that differ from the more conventional spinel structures found in the class. Its semiconducting nature positions it as a distinct alternative to metallic or highly conductive oxides like LaNiO3, offering a different electronic environment for surface-mediated reactions.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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