Shedding insights into the acid-base properties at the atomic level is crucial for heterogeneous catalysis. How to detect and identify the geometric structure, exact position and the acid-base properties of active sites remains a tremendous challenge in heterogeneous catalysis. Recently, we find that the interfacial Lewis acid−base pair [Ru-O-Ce-Vö], which consists of acidic Ce-Vö site and basic interfacial oxygen of Ru-O-Ce linkage, is readily formed on the Ru-clusters/ceria. Based on this discovery, the concept "Interfacial Acid-Base Pair" is mentioned for the first time (J. Am. Chem. Soc.). Recently, we find that the quinazolinones can be synthesized from olefins, CO and amines over heterogeneous Ru-clusters/ceria catalyst, forming three new bonds including C-C, C-N and C=N. This work has been selected as "Hot Paper" and published in the journal of Angew. Chem. Int. Ed.
Jinghua An‡, Yehong Wang‡, Jianmin Lu, Jian Zhang, Zhixin Zhang, Shutao Xu, Xiaoyan Liu, Tao Zhang, Martin Gocyla, Marc Heggen, Rafal E. Dunin-Borkowski, Paolo Fornasiero, Feng Wang*. Acid-promoter-free ethylene methoxycarbonylation over Ru-clusters/Ceria: the catalysis of interfacial lewis acid-base pair. J. Am. Chem. Soc., 2018, 140(11), 4172-4181.
Jinghua An, Yehong Wang, Zhixin Zhang, Zhitong Zhao, Jian Zhang, Feng Wang*. The synthesis of quinazolinones from olefins, CO and amines over heterogeneous Ru-clusters/ceria catalyst. Angew. Chem. Int. Ed., 2018, 57(38), 12308-12312.