Facile One-Pot Ultrasound-Assisted Reduction Synthesis of Pd/C Nanocatalyst for Green Suzuki-Miyaura Coupling
- DOI
- 10.2991/ismems-17.2018.18How to use a DOI?
- Keywords
- Ultrasonic reduction, pd/c nanocatalyst, heterogeneous catalysts, green suzuki-miyaura coupling reaction
- Abstract
Palladium nanoparticles (Pd NPs) supported on active carbon was prepared via ultrasonically treating Pd precursors in ethylene glycol without any protective agents. The Pd/C nanocatalysts were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2-adsorption analysis, and X-ray photoelectron spectrometry (XPS). The results suggested that Pd NPs with an average particle size of 7.54 nm are formed in Pd/C-600W. Pd NPs of Pd/C-600 W nanocatalysts were highly distributed on the surface of active carbon. Even under mild conditions, Pd/C-600 W catalyst exhibited a better catalytic performance than that of Pd/C-T catalysts in Suzuki-Miyaura coupling reactions. The yield of 4-bromonitrobenzene reached 94.28% with only 0.1 mmol% Pd/C-600 W catalyst. Pd/C-600 W catalyst could be easily separated by filtration. It could be recycled four times with limited activity decrease. The catalytic activity and recyclability of Pd/C-600 W is higher than Pd/C-T. This ascribed to smaller size and more uniform dispersion of Pd/C-600 W.
- Copyright
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Jiazhe Li AU - Xuefeng Bai PY - 2017/11 DA - 2017/11 TI - Facile One-Pot Ultrasound-Assisted Reduction Synthesis of Pd/C Nanocatalyst for Green Suzuki-Miyaura Coupling BT - Proceedings of the International Symposium on Mechanical Engineering and Material Science (ISMEMS 2017) PB - Atlantis Press SP - 79 EP - 82 SN - 2352-5401 UR - https://doi.org/10.2991/ismems-17.2018.18 DO - 10.2991/ismems-17.2018.18 ID - Li2017/11 ER -