Cr2NiO4

Cr2NiO4 is a stable, semiconducting oxide material utilized primarily in the study and development of oxygen-evolution catalysts for electrochemical energy systems.

Crystal structure of Cr2NiO4
Ground-state structure · Materials Project
Overview

About Cr2NiO4

Cr2NiO4 is a semiconducting oxide that holds a significant position within the family of oxygen-evolution catalysts. Its status as a thermodynamically stable phase on the convex hull suggests it is a robust candidate for long-term electrochemical applications where structural integrity is paramount.

This material is primarily investigated for its potential to facilitate efficient oxygen evolution reactions. Given its well-documented structural diversity across multiple databases, it serves as a valuable model system for understanding how transition metal arrangements influence catalytic performance in energy conversion technologies.

At a glance

Key Properties

Cross-validated computational properties for Cr2NiO4, aggregated across 3 databases.

Band Gap

0.70–2.79 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

16
3 databases, 8 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting Cr2NiO4.

Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where Cr2NiO4 is used.

Oxygen-evolution catalysisElectrochemical energy conversion research
Reference

Frequently Asked Questions

Common questions about Cr2NiO4, answered from cross-validated data.

What is Cr2NiO4?

Cr2NiO4 is a stable, semiconducting oxide material utilized primarily in the study and development of oxygen-evolution catalysts for electrochemical energy systems.

More questions
What is Cr2NiO4 used for?
Cr2NiO4 is used in oxygen-evolution catalysis and electrochemical energy conversion research.
What is the band gap of Cr2NiO4?
Cr2NiO4 has a DFT-computed band gap of 0.70–2.79 eV across 16 reported structures.
Is Cr2NiO4 a metal, semiconductor, or insulator?
With a band gap up to 2.79 eV it is a semiconductor.
Is Cr2NiO4 thermodynamically stable?
Yes — Cr2NiO4 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Cr2NiO4 are known?
16 structures of Cr2NiO4 are reported across 3 databases, spanning 8 distinct space groups.
How is Cr2NiO4 synthesized?
Literature-reported routes for Cr2NiO4 include sol gel, solid state (7 procedures documented).
What elements does Cr2NiO4 contain?
Cr2NiO4 contains Cr, Ni, and O (3 elements).
Where does the data for Cr2NiO4 come from?
Cr2NiO4 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, Cr2NiO4 occupies a distinct niche compared to well-known battery materials like LiCoO2 or LiMn2O4. While those compounds are optimized for lithium-ion intercalation, Cr2NiO4 is specifically studied for its catalytic surface activity, positioning it closer in functional intent to perovskite-related oxides like LaNiO3 or LaMnO3 that are frequently explored for their electrocatalytic properties.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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