点击次数：

DOI码：10.1002/adma.202000896

发表刊物：Advanced Materials

关键字：For multicenter‐catalyzed reactions, it is important to accurately construct heterogeneous catalysts containing multiple active centers with high activity and low cost, which is more challenging compared to homogeneous catalysts because of the low activity and spatial confinement of active centers in the loaded state. Herein, a convenient protein confinement strategy is reported to locate Pd and Cu single atoms in crowding state on carbon coated alumina for promoting Sonogashira reaction, the most powerful method for constructing the acetylenic moiety in molecules. The single‐atomic Pd and Cu centers take advantage in not only the maximized atomic utilization for low cost, but also the much‐enhanced performance by facilitating the activation of aryl halides and alkynes. Their locally crowded dispersion brings them closer to each other, which facilitates the transmetallation process of acetylide intermediates between them. Thus, the Sonogashira reaction is drove smoothly by the obtained catalyst with a turnover frequency value of 313 h−1, much more efficiently than that by commercial Pd/C and CuI catalyst, conventional Pd and Cu nanocatalysts, and mixed Pd and Cu single‐atom catalyst. The obtained catalyst also exhibits the outstanding durability in the recycling test.

论文类型：期刊论文

学科门类：理学

文献类型：J

卷号：2024

页面范围：2402971

是否译文：否

发表时间：2024-07-16

收录刊物：SCI

发布期刊链接：https://onlinelibrary.wiley.com/doi/10.1002/adma.202402971