Ce2O3

semiconductor
· Ce2O3

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.

automotive catalytic convertersoptical polishing compoundssolid oxide fuel cellsrare-earth ceramicsemissions control catalystssemiconductor research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
Pa
Poisson's Ratio(ν)
-
Shear Modulus(G)
Pa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
eV
eV
Magnetic Moment(μB)2 entries
μB
µB
Seebeck Coefficient(S)
µV/K
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
eV/atom
Formation Energy(ΔHf)3 entries
eV/atom
eV/atom
eV/atom
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.