PDF(3946 KB)
The Promotion Effect of Pd/Py-COF in the Hydrogenation of Quinoline
ZHANG Yongxin, SHI Zhongliang, GUO Miao, HU Yanming
PDF(3946 KB)
PDF(3946 KB)
The Promotion Effect of Pd/Py-COF in the Hydrogenation of Quinoline
In this paper, we report that pyrene-containing imine covalent organic framework material (Py-COF) supported Pd nanoparticles exhibit significantly high activity in the hydrogenation of quinoline to 1,2,3,4-tetrahydroquinoline, with a turnover frequency (TOF) value 2.1 times that of commercial Pd/C. Through techniques such as high-resolution electron microscopy, X-ray photoelectron spectroscopy, cyclic voltammetry of CO stripping, and control experiments, we have identified that the heightened activity of the Pd/Py-COF catalyst in quinoline hydrogenation stems from the electron-rich Pd surface, which facilitates substrate adsorption/desorption, and the weak interactions between quinoline and Py-COF. Furthermore, Pd/Py-COF demonstrates excellent recyclability and superior catalytic performance in the hydrogenation of various quinoline derivatives. This work underscores the significance of utilizing COFs to regulate the catalytic performance of metal catalysts.
covalent organic framework material / Pd nanoparticle / quinoline / hydrogenation
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