Cerium oxide (Ce₂O₃) is a rare-earth ceramic semiconductor belonging to the lanthanide oxide family, valued for its mixed-valence properties and oxygen storage capacity. It is employed primarily in catalytic converters for automotive emissions control, where its ability to store and release oxygen enhances pollutant reduction efficiency, and in polishing compounds for precision optics and semiconductor wafers. Ce₂O₃ is also investigated in solid oxide fuel cells, thermal barrier coatings, and advanced ceramics applications due to its ionic conductivity and thermal stability; its semiconductor behavior and defect chemistry make it particularly attractive for research into next-generation energy conversion and environmental remediation technologies.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 129.9 | GPa | — | ||
Poisson's Ratio(ν) | 0.3200 | - | — | ||
Shear Modulus(G) | 56.18 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.000 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.8160 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Magnetic Moment(μB)2 entries | 0.000 | μB | — | ||
| ↳ | 5.676 | µB | — | ||
Seebeck Coefficient(S) | -32.09 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00940 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -2.604 | eV/atom | — | ||
| ↳ | -3.731 | eV/atom | — | ||
| ↳ | -3.540 | eV/atom | — |