纳米尺度CeO_2在多相催化反应中的形貌效应  

Morphology Effect of Nano-Scale CeO_2 in Heterogeneous Catalytic Reactions

作　　者：李娟[1] 塔娜[1] 李勇[1] 申文杰[1] 

机构地区：[1]中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连116023

出　　处：《催化学报》2008年第9期823-830,共8页

摘　　要：CeO2的催化性能不仅与粒子大小有关,而且与其形貌密切相关.本文分析了CeO2的纳米结构和氧化还原特性,综述了CeO2在催化反应中的形貌效应,着重介绍了CeO2的结构和形貌对CO氧化、水气变换和乙醇水蒸气重整制氢以及二元醇脱水反应活性的影响.The catalytic reactivity of CeO2 not only depends on the particle size, but also closely relates to the morphology. The nanostructure and redox characteristic of CeO2 were analyzed in the paper, and the effects of the CeO2 structure and morphology on the representative catalytic reactions, including CO oxidation, water gas shift, and ethanol steam reforming, where the morphology-dependent catalysis is well demonstrated, were summarized.

关 键 词：氧化铈 纳米结构 氧化还原 形貌效应 多相催化反应 

分 类 号：O643.32[理学—物理化学]