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PARTLY CRYSTALLINE MESOSTRUCTURED MATERIAL CONSISTING OF CERIUM, ZIRCONIUM OR TITANIUM OXIDE AND COMPRISING AN ELEMENT IN MIXED CRYSTAL IN SAID OXIDE
PARTLY CRYSTALLINE MESOSTRUCTURED MATERIAL CONSISTING OF CERIUM, ZIRCONIUM OR TITANIUM OXIDE AND COMPRISING AN ELEMENT IN MIXED CRYSTAL IN SAID OXIDE
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机译:由铈,锆或钛的氧化物组成的部分晶体介晶材料,在所述氧化物中包含混合晶体中的元素
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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.
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