Mg3Co2O7

Mg3Co2O7 is a metastable, semiconducting oxide material primarily investigated for its potential role in oxygen-evolution catalysis.

Crystal structure of Mg3Co2O7
Ground-state structure · Materials Project
Overview

About Mg3Co2O7

Mg3Co2O7 is a complex oxide belonging to the class of oxygen-evolution catalysts. As a semiconducting material, it exhibits electronic properties that are distinct from the more metallic or highly conductive oxides often explored for electrochemical water splitting.

Despite its metastable nature, the compound has garnered interest within materials databases due to its structural diversity. It serves as a specialized candidate for researchers investigating how magnesium-cobalt-oxygen frameworks can be tuned for catalytic surface reactions.

At a glance

Key Properties

Cross-validated computational properties for Mg3Co2O7, aggregated across 3 databases.

Band Gap

0.27 eV
Range across DFT structures

Energy Above Hull

0.090 eV/atom
Best (lowest) across sources

Stability

Metastable
2 DFT sources

Structures

7
3 databases, 2 space groups
Uses

Applications

Where Mg3Co2O7 is used.

Oxygen-evolution catalysisElectrochemical water splitting researchAdvanced materials design
Reference

Frequently Asked Questions

Common questions about Mg3Co2O7, answered from cross-validated data.

What is Mg3Co2O7?

Mg3Co2O7 is a metastable, semiconducting oxide material primarily investigated for its potential role in oxygen-evolution catalysis.

More questions
What is Mg3Co2O7 used for?
Mg3Co2O7 is used in oxygen-evolution catalysis, electrochemical water splitting research, and advanced materials design.
What is the band gap of Mg3Co2O7?
Mg3Co2O7 has a DFT-computed band gap of 0.27 eV across 7 reported structures.
Is Mg3Co2O7 a metal, semiconductor, or insulator?
With a band gap up to 0.27 eV it is a semiconductor.
Is Mg3Co2O7 thermodynamically stable?
Mg3Co2O7 has a lowest energy above hull of 0.090 eV/atom (metastable).
How many polymorphs of Mg3Co2O7 are known?
7 structures of Mg3Co2O7 are reported across 3 databases, spanning 2 distinct space groups.
What elements does Mg3Co2O7 contain?
Mg3Co2O7 contains Co, Mg, and O (3 elements).
Where does the data for Mg3Co2O7 come from?
Mg3Co2O7 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Within the broad family of oxygen-evolution catalysts, Mg3Co2O7 occupies a niche position compared to well-established battery materials like LiCoO2 or LiMn2O4. While LiCoO2 is widely utilized for its reversible intercalation properties, Mg3Co2O7 is explored for its potential in catalytic applications where structural metastability may offer unique active sites for oxygen production that are not present in more stable, conventional perovskites like LaMnO3.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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