Oxygen Vacancy Clusters Promoting Reducibility and Activity of Ceria Nanorods

详细信息    查看全文

• 作者：Xiangwen Liu^† ; ^§ ; ; Kebin Zhou*^† ; ; Lei Wang^† ; ; Baoyi Wang^‡ ; ; Yadong Li*^§ ;
• 刊名：Journal of the American Chemical Society
• 出版年：2009
• 出版时间：March 11, 2009
• 年：2009
• 卷：131
• 期：9
• 页码：3140-3141
• 全文大小：161K
• 年卷期：v.131,no.9(March 11, 2009)
• ISSN：1520-5126

文摘

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.