Oxygen Vacancy Clusters Promoting Reducibility and Activity of Ceria Nanorods
Oxygen Vacancy Clusters Promoting Reducibility and Activity of Ceria Nanorods
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氧空位簇促进二氧化铈纳米棒的还原性和活性
DOI：
10.1021/ja808433d
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发表时间：
2009-03-11
影响因子：
15
通讯作者：
Li, Yadong
中科院分区：
文献类型：
--
作者：
Liu, Xiangwen;Zhou, Kebin;Li, Yadong
CeO2是一种具有特殊技术重要性的催化材料，而氧空位的准确作用对于更好地理解这些氧化物材料至关重要。本工作合成了两种不同氧空位类型和分布的CeO2纳米棒样品。结果表明，较大尺寸氧空位团簇的浓度与纳米CeO_2的还原/反应活性有直接关系。这些结果可能是理解和设计金属氧化物催化材料表面活性中心的重要一步。
CeO2 is a catalytic material of exceptional technological importance, and the precise role of oxygen vacancies is crucial to the greater understanding of these oxide materials. In this work, two ceria nanorod samples with different types and distributions of oxygen vacancies were synthesized. A direct relationship between the concentration of the larger size oxygen vacancy clusters and the reducibility/reactivity of nanosized ceria was revealed. These results may be an important step in understanding and designing active sites at the surface of metal oxide catalytic materials.