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金属-载体强相互作用(SMSI)的发生机理及其对催化活性的影响是目前CeO2基三效催化剂研究的热点。介绍了金属-载体强相互作用产生的基本条件及其基本特征,综述了贵金属与CeO2基复合氧化物间SMSI的可能机制及相关研究进展,提出了金属-载体强相互作用可能的研究方向。
The mechanism of the metal-support interaction (SMSI) and its influence on the catalytic activity are currently the hot topics of the CeO2-based three-way catalysts. The basic conditions and basic characteristics of metal-carrier interaction are introduced. The possible mechanism and related research progress of SMSI between noble metal and CeO2-based composite oxide are reviewed. Possible research directions of metal-support interaction are proposed.