| 简介 |
FIELD : chemistry.
SUBSTANCE : present invention relates to a core-shell structure, a method of making said structure and a catalyst for cleaning exhaust gases having a core-shell structure. Described is a core-shell structure for use as a catalyst support, characterised by availability of a central section primarily formed from a first metal oxide, and a shell section primarily formed from a second metal oxide different from the first metal oxide, where molar ratio of cerium to zirconium is in the range 0.2
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