Stable Substoichiometric Cerium Oxide Formed in an Air Plasma

Science  14 Jun 1968:
Vol. 160, Issue 3833, pp. 1239
DOI: 10.1126/science.160.3833.1239


Cerium dioxide was reduced to a stable, substoichiometric monophase in an air plasma. This phase has been identified as CeO1.94 by thermal gravimetric analysis. The existence of a stable, reduced phase of cerium oxide can be explained by interpretation of both theoretical and experimentally determined crystal data.