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Zirconium, cerium, at least one rare earth other than cerium, and a composition based on an oxide of silicon, its production method and its use in catalysts
Zirconium, cerium, at least one rare earth other than cerium, and a composition based on an oxide of silicon, its production method and its use in catalysts
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机译:锆,铈,铈以外的至少一种稀土以及基于硅的氧化物的组合物,其制备方法及其在催化剂中的用途
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摘要
The composition according to the invention is based on zirconium oxide, cerium oxide and at least one oxide of a rare earth other than cerium, in a proportion, by weight, of zirconium oxide of at least 5% and of cerium oxide of at most 90%, and it is characterized in that it additionally comprises silicon oxide in an amount, by weight, of between 0.1% and 2%. This composition may be used in catalysis, in particular in systems for treating the exhaust gases of internal combustion engines.
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