CaNiO2

CaNiO2 is a thermodynamically stable semiconducting oxide utilized in the study of oxygen-evolution catalysis.

Crystal structure of CaNiO2
Ground-state structure · Materials Project
Overview

About CaNiO2

CaNiO2 is a semiconducting oxide that occupies a stable position on the convex hull, indicating significant thermodynamic robustness. As a member of the oxygen-evolution catalyst class, it represents an interesting candidate for electrochemical energy conversion processes where structural integrity is paramount.

With numerous reported structures across major databases, this compound is a subject of extensive crystallographic interest. Its electronic character and composition make it a valuable material for researchers investigating the fundamental mechanisms of catalytic oxygen production in oxide systems.

At a glance

Key Properties

Cross-validated computational properties for CaNiO2, aggregated across 3 databases.

Band Gap

0.20–2.45 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

38
3 databases, 17 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting CaNiO2.

Sol Gel
Procedure available · ceder_sol_gel
Uses

Applications

Where CaNiO2 is used.

Oxygen-evolution catalysis researchElectrochemical energy conversion studies
Reference

Frequently Asked Questions

Common questions about CaNiO2, answered from cross-validated data.

What is CaNiO2?

CaNiO2 is a thermodynamically stable semiconducting oxide utilized in the study of oxygen-evolution catalysis.

More questions
What is CaNiO2 used for?
CaNiO2 is used in oxygen-evolution catalysis research and electrochemical energy conversion studies.
What is the band gap of CaNiO2?
CaNiO2 has a DFT-computed band gap of 0.20–2.45 eV across 38 reported structures.
Is CaNiO2 a metal, semiconductor, or insulator?
With a band gap up to 2.45 eV it is a semiconductor.
Is CaNiO2 thermodynamically stable?
Yes — CaNiO2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CaNiO2 are known?
38 structures of CaNiO2 are reported across 3 databases, spanning 17 distinct space groups.
How is CaNiO2 synthesized?
Literature-reported routes for CaNiO2 include sol gel.
What elements does CaNiO2 contain?
CaNiO2 contains Ca, Ni, and O (3 elements).
Where does the data for CaNiO2 come from?
CaNiO2 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the oxide oxygen-evolution catalysts class.

Within the diverse landscape of oxide catalysts, CaNiO2 distinguishes itself from more common battery-related materials like LiCoO2 or LiNiO2 by its specific structural arrangement. While compounds such as LaNiO3 or La2NiO4 are widely recognized for their roles in high-temperature catalysis, CaNiO2 offers a distinct alternative for researchers exploring the stability-performance trade-offs inherent in nickel-based oxygen-evolution catalysts.

Explore

Related Compounds

Other Oxide Oxygen-Evolution Catalysts in the database.

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

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