Zeolite-Enhanced Sustainable Pd-Catalyzed C-C Cross-Coupling Reaction: Controlled Release and Capture of Palladium
| Autor: | Jiyang Li, Ping Zuo, Ziwei Gao, Ya Wu, Weiqiang Zhang, Yanyan Wang, Kan Zhang, Jiaping Liao, Zunyuan Xie |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Controlled release Coupling reaction 0104 chemical sciences Ion Catalysis Adsorption chemistry Chemical engineering General Materials Science 0210 nano-technology Zeolite Palladium |
| Zdroj: | ACS applied materialsinterfaces. 12(10) |
| ISSN: | 1944-8252 |
| Popis: | Supported palladium catalysts have attracted significant attention for use in cross-coupling reactions due to their recyclability. However, the inevitable progressive loss of Pd that occurs in the catalytic process deactivates the catalysts, which hinders their sustainable application. Herein, we report a zeolite-enhanced sustainable Pd catalyst for C–C cross-coupling reactions. Zeolite does a good job of acting as a sink for Pd2+ ions. This catalyst exhibits an excellent homogeneous catalytic performance by releasing Pd species from zeolite. In addition, the Pd2+ ions were successfully recaptured in a controlled catalytic system by combining the uniform microporous structure and good adsorption features of zeolite. The release/capture mechanism of the Pd species guaranteed the high loading and high dispersion of Pd on the recycled catalyst. The 0.84%Pd@USY catalysts were reused at least 10 times in water without an appreciable reduction in activity. This study presents a new perspective toward the design... |
| Databáze: | OpenAIRE |
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