| Autor: |
Shi, Shaolin, Lan, Huanshi, Tao, Chenfa, Zhang, Ying, Zhang, Hao, Sun, Qingdi, Zhang, Xingcong, Guo, Guanghui, He, Qian, He, Xiaohui, Ji, Hongbing |
| Zdroj: |
Chemical Papers; Jun2023, Vol. 77 Issue 6, p3495-3500, 6p |
| Abstrakt: |
Metal-free catalyst in imine synthesis was a great challenge due to the continuous rise in metal prices and unfriendly massive mining of metal. Herein, sp2/sp3 hybridization nanodiamond–graphene (ND@G) was obtained by simple heat treatment of the commercially nanodiamonds (ND) under argon atmosphere, the as-prepared catalyst showed excellent activity and selectivity for directly imine synthesis. The physical structure changes of nanodiamond before and after heat treatment were well-characterization, and it was found that the nanodiamond surface layer changed from disordered sp3 hybridized carbon to sp2/sp3 core–shell structure. This study demonstrates the possibility of using metal-free catalysts for imine synthesis by nanodiamond. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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