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Ceria-zirconia mixed oxide particles, by thermal decomposition and manufacturing method thereof 发明申请

2023-02-17 1110 299K 0

专利信息

申请日期 2025-07-12 申请号 JP2015527056
公开(公告)号 JP2015526377A 公开(公告)日 2015-09-10
公开国别 JP 申请人省市代码 全国
申请人 BASF SE
简介 Ceria-Zirconia-Mixed oxide particles and process for their production by pyrolysis, wherein the process comprising : (1) providing a mixture comprising a solvent, one or more precursor compounds of ceria, one or more precursor compounds of zirconia, and one or more precursor compounds of one or more rare earth oxides other than ceria and/or one or more precursor compounds of yttria; (2) forming an aerosol of the mixture provided in step (1); and (3) pyrolyzing the aerosol of step (2) to obtain mixed oxide particles; wherein the content of the rare earth oxides other than ceria and/or of yttria in the mixed oxide particles formed in step (3) is comprised in the range of from 0.1 to 4.9 wt.-% based on the total weight of the rare earth oxides, yttria, and zirconia contained in the mixed oxide particles, as well as to mixed oxide particles obtainable from flame spray pyrolysis and to their use as an oxygen storage component, a catalyst and/or as a catalyst support.


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