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AssigneeNeo Performance Materials (Singapore) Pte. Ltd.
InventorsBarry HUANG, Benedict HSU, Szu Hwee NG
Estimating the term…
Disclosed herein are compositions having enhanced oxygen storage capacity (OSC). The high OSC compositions contain zirconium oxide, cerium oxide, and optionally one or more rare earth oxides other than cerium. These optional additional rare earth oxides may be yttrium oxide, lanthanum oxide, neodymium oxide, praseodymium oxide, or mixtures thereof. These compositions have an oxygen storage capacity of about 40 μmol-O2/g to about 300 μmol-O2/g after calcining at a temperature of about 900° C. in air for about 5 hours. Further disclosed are processes of producing these compositions having enhanced oxygen storage capacity (OSC). The compositions may be used as catalytic carriers or as part of a catalyst system.
A composition comprising zirconium oxide, cerium oxide, and optionally one or more rare earth oxides other than cerium, wherein the composition exhibits an Oxygen Storage capacity of about 40 μmol-O2/g to about 300 μmol-O2/g after calcining at a temperature of about 900° C. in air for about 5 hours.
A composition consisting essentially of zirconium oxide, cerium oxide, and one or more of yttrium oxide, lanthanum oxide, neodymium oxide, and praseodymium oxide, wherein the composition exhibits an Oxygen Storage capacity of about 40 μmol-O2/g to about 300 μmol-O2/g after calcining at a temperature of about 900° C. in air for about 5 hours.
A process of producing oxides with high Oxygen Storage capacity comprising:
Dependencies are inferred from the claim text.