MnHO2

manganite · gamma-MnOOH

MnHO2 is a semiconducting manganese-based oxyhydroxide utilized as a catalyst in oxygen-evolution reactions.

Crystal structure of MnHO2
Ground-state structure · Materials Project
Overview

About manganite

MnHO2 is a semiconducting manganese oxyhydroxide that plays a significant role in the field of oxide oxygen-evolution catalysts. Its electronic properties and structural flexibility make it a subject of interest for researchers investigating efficient electrochemical water splitting and energy conversion processes.

As a near-hull material, it is considered likely to be synthesizable, bridging the gap between theoretical prediction and experimental application. With numerous reported structures, it represents a well-documented candidate for advanced catalytic surfaces where stability and activity are paramount.

At a glance

Key Properties

Cross-validated computational properties for manganite, aggregated across 4 databases.

Band Gap

0.04–1.96 eV
Range across DFT structures

Energy Above Hull

0.004 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
2 DFT sources

Structures

37
4 databases, 11 space groups
Uses

Applications

Where manganite is used.

Oxygen-evolution catalystsElectrochemical water splittingEnergy conversion devices
Reference

Frequently Asked Questions

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

What is MnHO2?

MnHO2 is a semiconducting manganese-based oxyhydroxide utilized as a catalyst in oxygen-evolution reactions.

More questions
What is MnHO2 used for?
manganite (MnHO2) is used in oxygen-evolution catalysts, electrochemical water splitting, and energy conversion devices.
What is the band gap of MnHO2?
manganite (MnHO2) has a DFT-computed band gap of 0.04–1.96 eV across 37 reported structures.
Is MnHO2 a metal, semiconductor, or insulator?
With a band gap up to 1.96 eV it is a semiconductor.
Is MnHO2 thermodynamically stable?
manganite (MnHO2) has a lowest energy above hull of 0.004 eV/atom (near hull (likely stable)).
How many polymorphs of MnHO2 are known?
37 structures of MnHO2 are reported across 4 databases, spanning 11 distinct space groups.
What elements does MnHO2 contain?
manganite (MnHO2) contains H, Mn, and O (3 elements).
Where does the data for MnHO2 come from?
MnHO2 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Within the diverse family of oxide oxygen-evolution catalysts, MnHO2 offers a distinct structural profile compared to complex transition metal oxides like LaMnO3 or LiCoO2. While materials such as NiO are frequently utilized for their robust surface activity, MnHO2 provides a unique manganese-based framework that allows for different coordination environments, making it a versatile alternative to the more rigid perovskite or spinel structures found in the class.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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