| abstract |
The present invention relates to a composition based on zirconium oxide and cerium oxide and, optionally, another rare earth oxide, characterized in that it comprises tin oxide in a proportion of up to 25% by weight of the oxide. The composition comprises a mixture comprising zirconium, cerium and tin compounds, and optionally another rare earth compound; Placing the mixture in the presence of a basic compound to obtain a precipitate; The precipitate consists of heating and calcining in an aqueous medium. The composition can in particular be used as a catalyst for vehicle consumption gases. |