MnTeO3

MnTeO3 is a metastable, insulating oxide compound investigated for its catalytic properties and structural versatility.

Crystal structure of MnTeO3 (orthorhombic, Pnma (No. 62))
Ground-state structure · Materials Project
Overview

About MnTeO3

MnTeO3 is a complex oxide characterized by its insulating electronic nature and metastable thermodynamic state. As a member of the oxide oxygen-evolution catalyst class, it represents a unique structural arrangement of manganese, tellurium, and oxygen atoms that offers distinct pathways for surface-mediated chemical reactions. Its structural diversity is highlighted by multiple reported configurations across various databases, making it a subject of interest for fundamental materials research. The compound is primarily studied for its potential utility in electrochemical energy conversion systems where stable, non-metallic oxides are required to facilitate oxygen production. Its wide-gap electronic character suggests potential applications in specialized optoelectronic or catalytic environments where charge carrier control is essential.

At a glance

Key Properties

Cross-validated computational properties for MnTeO3, aggregated across 3 databases.

Band Gap

0.81–2.46 eV
Range across DFT structures · ground state: wide gap

Energy Above Hull

0.002 eV/atom
Best (lowest) across sources

Stability

Near Hull
3 DFT sources

Structures

9
3 databases, 1 space group
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of MnTeO3. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

0.39 / 1.00
Trust tier: low

Hull Spread

0.152 eV
EAH spread across sources

Sources Compared

3
jarvis, materials_project, oqmd

Space Group Consensus

All match
Crystallography

Reported Structures

Lowest-energy structures reported for MnTeO3, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
——2.460.0016-1.683—
——2.400.0341-1.651—
Pnma (No. 62)orthorhombic3.010.0344-7.1705.69
Pnma (No. 62)orthorhombic0.810.1534-1.265—
Pnma (No. 62)orthorhombic0.360.2303-6.9745.80
——0.000.4224-1.263—
——0.000.6571-1.028—
——0.000.6812-1.004—
Pnma (No. 62)orthorhombic———5.84
Pnma (No. 62)orthorhombic———5.69
Pnma (No. 62)orthorhombic———6.10
Uses

Applications

Where MnTeO3 is used.

Oxygen-evolution catalysis researchElectrochemical energy conversionAdvanced materials synthesis
Reference

Frequently Asked Questions

Common questions about MnTeO3, answered from cross-validated data.

What is MnTeO3?

MnTeO3 is a metastable, insulating oxide compound investigated for its catalytic properties and structural versatility.

More questions
What is MnTeO3 used for?
MnTeO3 is used in oxygen-evolution catalysis research, electrochemical energy conversion, and advanced materials synthesis.
What is the band gap of MnTeO3?
MnTeO3 has a DFT-computed band gap of 0.81–2.46 eV across 9 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is MnTeO3 a metal, semiconductor, or insulator?
DFT predicts a band gap of up to 2.46 eV (a semiconductor). Measured gaps are typically larger.
Is MnTeO3 thermodynamically stable?
MnTeO3 has a lowest energy above hull of 0.002 eV/atom (near hull).
What is the crystal structure of MnTeO3?
The reference structure of MnTeO3 is orthorhombic symmetry, space group Pnma (No. 62).
What is the density of MnTeO3?
The computed density of the ground-state structure of MnTeO3 is 5.69 g/cm³.
How many polymorphs of MnTeO3 are known?
9 structures of MnTeO3 are reported across 3 databases, spanning 1 distinct space group.
What elements does MnTeO3 contain?
MnTeO3 contains Mn, O, and Te (3 elements).
Where does the data for MnTeO3 come from?
MnTeO3 data is cross-referenced from oqmd, materials_project, jarvis, mpaloe.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Unlike the highly studied and commercially prevalent battery materials such as LiCoO2 or LiMn2O4, MnTeO3 occupies a more specialized niche within the oxide catalyst family. While compounds like LaMnO3 and NiO are frequently utilized for their robust conductivity and catalytic activity, MnTeO3 is distinguished by its metastable nature and insulating properties, which set it apart from the more metallic or semi-conducting perovskite-related oxides in the class.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

Data sources & attribution
  • oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
  • materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
  • jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
  • mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.

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