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Single-atom Sn-Zn pairs in CuO catalyst promote dimethyldichlorosilane synthesis
| Content Provider | Oxford Academic |
|---|---|
| Author | Shi, Qi Ji, Yongjun Chen, Wenxin Zhu, Yongxia Li, Jing Liu, Hezhi Li, Zhi Tian, Shubo Wang, Ligen Zhong, Ziyi Wang, Limin Ma, Jianmin Li, Yadong Su, Fabing |
| Copyright Year | 2020 |
| Abstract | Single-atom catalysts are of great interest because they can maximize the atom-utilization efficiency and generate unique catalytic properties; however, much attention has been paid to single-site active components, rarely to catalyst promoters. Promoters can significantly affect the activity and selectivity of a catalyst, even at their low concentrations in catalysts. In this work, we designed and synthesized CuO catalysts with atomically dispersed co-promoters of Sn and Zn. When used as the catalyst in the Rochow reaction for the synthesis of dimethyldichlorosilane, this catalyst exhibited much-enhanced activity, selectivity and stability compared with the conventional CuO catalysts with promoters in the form of nanoparticles. Density functional theory calculations demonstrate that single-atomic Sn substitution in the CuO surface can enrich surface Cu vacancies and promote dispersion of Zn to its atomic levels. Sn and Zn single sites as the co-promoters cooperatively generate electronic interaction with the CuO support, which further facilitates the adsorption of the reactant molecules on the surface, thereby leading to the superior catalytic performance. |
| Related Links | https://academic.oup.com/nsr/article-pdf/7/3/600/38919166/nwz196.pdf |
| Ending Page | 608 |
| Starting Page | 600 |
| File Format | |
| ISSN | 20955138 |
| e-ISSN | 2053714X |
| DOI | 10.1093/nsr/nwz196 |
| Journal | National Science Review |
| Issue Number | 3 |
| Volume Number | 7 |
| Language | English |
| Publisher | Oxford Academic |
| Publisher Date | 2020-03-01 |
| Access Restriction | Open |
| Subject Keyword | Medicine and Health Science and Mathematics Dual Single-atom Promoters Cuo Catalyst Dimethyldichlorosilane Synthesis Rochow Reaction Catalytic Performance |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
