PARTLY CRYSTALLINE MESOSTRUCTURED MATERIAL CONSISTING OF CERIUM, ZIRCONIUM OR TITANIUM OXIDE AND COMPRISING AN ELEMENT IN MIXED CRYSTAL IN SAID OXIDE

摘要

The invention relates to a mesostructured material partially crystalline, which is essentially constituted by a compound chosen from among cerium oxide, zirconium oxide, titanium oxide or a mixture of these compounds and which is characterized in that it comprises at least one element m in solid solution in the oxide. This material is obtained by a process in which (a) are placed in contact with a partially crystalline mesostructured material starting with a solution of the element m, which has a concentration of this element of at most 2 mol / l; and (b) is the material obtained after this placing in contact with said solution at a temperature of at most 500°C; the steps (a) and (b) being repeated if necessary, to obtain a material having the desired content of element m. the material can be used as catalyst.