YMn2O4

YMn2O4 is a semiconducting yttrium-manganese oxide that is studied for its potential role in electrochemical oxygen-evolution catalysis.

Crystal structure of YMn2O4
Ground-state structure · Materials Project
Overview

About YMn2O4

YMn2O4 is a semiconducting oxide composed of yttrium, manganese, and oxygen. As a member of the transition metal oxide family, it is primarily studied for its potential utility in electrochemical processes, particularly those involving oxygen-evolution reactions. Despite being a complex material with multiple reported structural configurations, it remains a subject of fundamental interest in materials science research. Because it is positioned above the thermodynamic hull, it is considered a metastable phase, which presents unique challenges and opportunities for synthesis and stabilization in experimental settings. Its electronic nature as a semiconductor makes it a candidate for exploring charge transport mechanisms in catalytic applications.

At a glance

Key Properties

Cross-validated computational properties for YMn2O4, aggregated across 3 databases.

Band Gap

0.04–1.11 eV
Range across DFT structures

Energy Above Hull

0.108 eV/atom
Best (lowest) across sources

Stability

Above hull
2 DFT sources

Structures

15
3 databases, 3 space groups
Uses

Applications

Where YMn2O4 is used.

Oxygen-evolution catalysis researchElectrochemical energy conversion studies
Reference

Frequently Asked Questions

Common questions about YMn2O4, answered from cross-validated data.

What is YMn2O4?

YMn2O4 is a semiconducting yttrium-manganese oxide that is studied for its potential role in electrochemical oxygen-evolution catalysis.

More questions
What is YMn2O4 used for?
YMn2O4 is used in oxygen-evolution catalysis research and electrochemical energy conversion studies.
What is the band gap of YMn2O4?
YMn2O4 has a DFT-computed band gap of 0.04–1.11 eV across 15 reported structures.
Is YMn2O4 a metal, semiconductor, or insulator?
With a band gap up to 1.11 eV it is a semiconductor.
Is YMn2O4 thermodynamically stable?
YMn2O4 has a lowest energy above hull of 0.108 eV/atom (above hull).
How many polymorphs of YMn2O4 are known?
15 structures of YMn2O4 are reported across 3 databases, spanning 3 distinct space groups.
What elements does YMn2O4 contain?
YMn2O4 contains Mn, O, and Y (3 elements).
Where does the data for YMn2O4 come from?
YMn2O4 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Within the broader class of oxide oxygen-evolution catalysts, YMn2O4 occupies a distinct niche compared to more conventional materials like LiMn2O4 or LaMnO3. While many of its siblings are well-established, stable perovskite or spinel structures used extensively in battery and catalytic technologies, YMn2O4 is characterized by its metastable nature and structural complexity. It serves as a specialized research material for probing how non-equilibrium phases influence catalytic activity compared to the highly stable, widely utilized oxides like NiO or LiCoO2.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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