K2NiO2 is an inorganic ceramic compound containing potassium and nickel oxides, representing a mixed-metal oxide in the broader family of transition-metal ceramics. This material is primarily of research and experimental interest rather than a mature commercial ceramic; it is studied for potential applications in catalysis, electrochemistry, and solid-state ionic systems where nickel-based oxides show promise for enhanced reactivity or ion transport. Engineers would consider this compound when exploring novel catalytic materials, oxygen-ion conductors, or mixed-valence oxide systems where the potassium-nickel interaction offers performance advantages not available in single-component oxides.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 5,028.5 | ksi | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 2,544 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1028 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.7230 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 7.391 | - | — | ||
Magnetic Moment(μB) | 2.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -424 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.340 | eV/atom | — |