| 第一作者： | Tian, ZB (Tian, Zhengbin); Wang, WQ (Wang, Wenquan); Zheng, Y (Zheng, Yan); Wang, GH (Wang, Guang-Hui); |
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| 联系作者： | Tian, ZB (Tian, Zhengbin); Wang, WQ (Wang, Wenquan); Zheng, Y (Zheng, Yan); Wang, GH (Wang, Guang-Hui); |
| 发表年度： | 2021 |
| 期： | 45 |
| 卷： | 9 |
| 页： | 25488-25494 |
| 摘要： | Carbon-supported single-atom catalysts (SACs) have brought considerable attention to heterogeneous catalysis, but they, however, often suffer from low activity due to the mass transfer limitation. Herein, we report a soft-templating method to synthesize core-shell mesostructured polymer nanospheres with metal nanoclusters (M-NCs, M = Pd, Pt) as the core, which can be easily converted into nitrogen-doped mesoporous carbon nanosphere (NMCS) supported SACs (M-1/NMCS) after a confined thermal transformation process. Through this strategy, Pd-1/NMCS and Pt-1/NMCS are successfully prepared with rich porosity and high N content. The abundant N species in M-1/NMCS can be employed as anchoring sites to capture and stabilize the single metal atoms. In addition, the mesoporous structure of M-1/NMCS is beneficial for the mass transfer and the exposure of active sites. Benefiting from such a unique structure, the as-obtained Pd-1/NMCS exhibits excellent activity, selectivity, and long-term stability in the selective hydrogenation of quinoline. |
| 刊物名称： | JOURNAL OF MATERIALS CHEMISTRY A |
| 影响因子： | 10.733 |
| 全文链接： | https://pubs.rsc.org/en/content/articlelanding/2021/TA/D1TA08365A |
