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.
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