School of Chemical Engineering and Technology, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
基金项目：
the National Natural Science Foundation of China(21872109);the China Postdoctoral Science Foundation(2018T111034);the Cyrus Tang Foundation through the Tang Scholar program. S. Zhang is supported by the Fundamental Research Funds for the Central Universities, China(xjj2018033);the Natural Science Foundation of Shaanxi Province, China(2019JQ-039)
School of Chemical Engineering and Technology, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
Abstract:
Solid materials containing frustrated Lewis pairs (FLPs) as active sites have attracted much attention due to their ability to activate and transform small molecules. However, it is still highly challenging to precisely construct FLP sites on the surfaces of nanomaterials, thereby limiting the applications of these materials. Nanostructured ceria (CeO2) is commonly employed as a catalyst or functional support, and exhibits both Lewis acid and basic properties as well as abundant and easily regulated surface defects, which originate from the reversible Ce3+/Ce4+ redox pair. When the Lewis acid and base sites of CeO2 are independent of each other, the combined Lewis acid-base sites play a similar role to that of homogeneous FLP sites. Thus, the rich surface properties of nanostructured CeO2 provide significant potential for the construction of solid FLPs.
