1. Atomically Dispersed Pd Sites on ZrO 2 Hybridized N-Doped Carbon for Efficient Suzuki–Miyaura Reaction.
- Author
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Du, Jiaqi, Peng, Yidan, Guo, Xu, Zhang, Guoliang, Zhang, Fengbao, Fan, Xiaobin, Peng, Wenchao, and Li, Yang
- Subjects
SUZUKI reaction ,DOPING agents (Chemistry) ,PRECIOUS metals ,HETEROGENEOUS catalysis ,DESIGN exhibitions ,ELECTRON donors - Abstract
Researchers studying heterogeneous catalysis are intrigued by single-atom catalysts (SACs) due to their ultrahigh atomic utilization. However, only a few reports on SAC-catalyzed classical organic transformations are available. In this work, atomically dispersed Pd sites are confined to a ZrO
2 hybridized N-doped carbon skeleton with a smart design. UiO-66-NH2 is used to anchor Pd atoms by the coordination of the donor atoms including lone pairs of electrons and metal atoms. Subsequently, the in situ introduction of ZrO2 doping is achieved using pyrolysis, which helps improve the catalytic performance by modulating the electronic state. The Pd@ZrO2 /N–C catalyst obtained from the unique design exhibits a high yield (99%) in eco-friendly media with an extremely low noble metal dosage (0.03 mol% Pd) for the Suzuki reaction. Moreover, Pd@ZrO2 /N–C remains highly active after being reused several times and possesses versatility in a variety of substrates. This strategy offers a feasible alternative to designing SACs with atomically dispersed noble metals for heterogeneous reactions. [ABSTRACT FROM AUTHOR]- Published
- 2023
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