【摘要】 纳米CeO2作为一种重要的催化材料,在CO催化氧化、有机合成催化、光催化,以及生物抗氧化等方面都有着重要的应用。纳米CeO2中Ce3+和Ce4+间的可逆转变过程伴随着氧空穴的生成与消除,从而赋予了纳米CeO2优异的氧存储与氧释放能力,也成为CeO2催化应用的基础。本文在简要总结近年来CeO2催化研究及应用进展的基础上,以CO催化氧化反应为例,分别从尺寸、形貌、氧缺陷活性位点三个方面介绍了影响CeO2催化活性的因素,对纳米CeO2的催化基础研究及应用发展提出了展望。更多还原

【Abstract】 Ceria nanostructures constitute an important class /family of catalysts in the field of CO oxidation,organic syntheses,photocatalysis and bio-antioxidation. In ceria,the reversible conversion between Ce3 +and Ce4 +is accompanied with the formation and elimination of oxygen defects,which endows ceria with excellent capability of storing and releasing oxygen,underlying their catalytic performances. This article reviews the applications and influencing factors of ceria on catalysis,in particular,the relationship between the catalytic performances and the surface properties of ceria nanostructures. Finally,the perspective on the future trends for the applications of nanoceria is proposed.更多还原