MnNi3O4

MnNi3O4 is a thermodynamically stable semiconducting oxide utilized in the development of oxygen-evolution catalysts.

Crystal structure of MnNi3O4
Ground-state structure · Materials Project
Overview

About MnNi3O4

MnNi3O4 is a semiconducting oxide that sits on the convex hull, indicating significant thermodynamic stability. As a member of the oxygen-evolution catalyst class, its structural integrity and electronic properties make it a subject of interest for electrochemical energy conversion processes.

With numerous reported structures across major databases, this compound is well-characterized in the materials science community. Its specific arrangement of manganese, nickel, and oxygen atoms provides a distinct platform for exploring catalytic activity in aqueous environments.

At a glance

Key Properties

Cross-validated computational properties for MnNi3O4, aggregated across 3 databases.

Band Gap

0.64–1.42 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

12
3 databases, 3 space groups
Uses

Applications

Where MnNi3O4 is used.

Oxygen-evolution catalysisElectrochemical energy conversionMaterials science research
Reference

Frequently Asked Questions

Common questions about MnNi3O4, answered from cross-validated data.

What is MnNi3O4?

MnNi3O4 is a thermodynamically stable semiconducting oxide utilized in the development of oxygen-evolution catalysts.

More questions
What is MnNi3O4 used for?
MnNi3O4 is used in oxygen-evolution catalysis, electrochemical energy conversion, and materials science research.
What is the band gap of MnNi3O4?
MnNi3O4 has a DFT-computed band gap of 0.64–1.42 eV across 12 reported structures.
Is MnNi3O4 a metal, semiconductor, or insulator?
With a band gap up to 1.42 eV it is a semiconductor.
Is MnNi3O4 thermodynamically stable?
Yes — MnNi3O4 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of MnNi3O4 are known?
12 structures of MnNi3O4 are reported across 3 databases, spanning 3 distinct space groups.
What elements does MnNi3O4 contain?
MnNi3O4 contains Mn, Ni, and O (3 elements).
Where does the data for MnNi3O4 come from?
MnNi3O4 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Within the diverse family of oxygen-evolution catalysts, MnNi3O4 occupies a distinct position compared to simpler binary oxides like NiO or complex layered structures such as LiNiO2 and LiCoO2. While materials like LaMnO3 and LaNiO3 are frequently studied for their perovskite-based catalytic performance, MnNi3O4 offers a different compositional balance that distinguishes its electrochemical behavior from the more common lithium-based intercalation oxides.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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