Influence of Pt/Pd state on ceria-based support in CO oxidation

作     者：Igor V.Zagaynov Elena Yu.Liberman Alexander V.Naumkin Igor V.Zagaynov;Elena Yu.Liberman;Alexander V.Naumkin

作者机构：A.A.Baikov Institute of Metallurgy and Materials ScienceMoscowRussia D.I.Mendeleev University of Chemical Technology of RussiaMoscowRussia A.N.Nesmeyanov Institute of Organoelement CompoundsMoscowRussia 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2023年第41卷第12期

页      面：1963-1968,I0005页

核心收录：

学科分类：081705[工学-工业催化] 0806[工学-冶金工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Project partially supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental orders and the state funding 

主　　题：Ceria Platinum Palladium CO oxidation Rare earths 

摘      要：Noble metal(M:Pt,Pd,PtPd) supported on ceria system catalysts were *** oxidized and reduced forms of the active component were examined in CO *** catalysts become more active after a reduction pretreatment,which shifts the temperature of CO *** of the data obtained from characterization techniques indicates that the strong interaction of metal ions with the support prevent the reduction of the initial MO_(x)to metallic *** formation of M-ceria interfaces efficiently boosts the oxygen activation during CO oxidation,leading to the formation of chemisorbed O on M and the regeneration of the ceria lattice oxygen,thus greatly improving the catalytic performance.