In situ preparation of graphene oxide supported Pd nanoparticles in an ionic liquid and the long-term catalytic stability for the Heck reaction
作者： Dan Liu , Changjun Zhang , Fei Wang , Zhongyuan Huang , Ningshuang Zhang
DOI: 10.1039/C5TA03767K
关键词:
摘要: Palladium (Pd) nanoparticles supported on reduced graphene oxide (Pd/RGO) were successfully prepared in situ 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM]PF6) ionic liquid (Pd/RGO–IL) by the phase transfer method from water. The Pd/RGO catalyst was characterized transmission electron microscopy, X-ray photoelectron spectroscopy, diffraction, Fourier transform infrared spectroscopy and thermogravimetric analysis. synthesised Pd uniformly dispersed surface of RGO with an average size distribution 2 nm. as-prepared Pd/RGO–IL exhibits good catalytic activity long-term stability for Heck reactions IL. Initially product conversion is 95% still remains at 91% after being cycled ten times. TEM images tenth run show that are stably suspended IL about 2.0 nm there almost no agglomeration during reaction. This may be due to double protection organic cation [BMIM]+ evenly Hence, remarkable
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sci-hub.se 参考文章(69)
Martha A. De La Rosa, Esperanza Velarde, Angel Guzmán, Cross-Coupling Reactions of Monosubstituted Acetylenes and Aryl Halides Catalyzed by Palladium on Charcoal Synthetic Communications. ,vol. 20, pp. 2059- 2064 ,(1990) , 10.1080/00397919008053137
Christian P. Mehnert, David W. Weaver, Jackie Y. Ying, Heterogeneous Heck Catalysis with Palladium-Grafted Molecular Sieves Journal of the American Chemical Society. ,vol. 120, pp. 12289- 12296 ,(1998) , 10.1021/JA971637U
Jürgen Schwarz, Volker P. W. Böhm, Michael G. Gardiner, Manja Grosche, Wolfgang A. Herrmann, Wolfgang Hieringer, Gabriele Raudaschl-Sieber, Polymer‐Supported Carbene Complexes of Palladium: Well‐Defined, Air‐Stable, Recyclable Catalysts for the Heck Reaction Chemistry: A European Journal. ,vol. 6, pp. 1773- 1780 ,(2000) , 10.1002/(SICI)1521-3765(20000515)6:10<1773::AID-CHEM1773>3.0.CO;2-P
Saikat Mandal, Debdut Roy, Raghunath V. Chaudhari, Murali Sastry, Pt and Pd Nanoparticles Immobilized on Amine-Functionalized Zeolite: Excellent Catalysts for Hydrogenation and Heck Reactions Chemistry of Materials. ,vol. 16, pp. 3714- 3724 ,(2004) , 10.1021/CM0352504
Xiaomei Chen, Genghuang Wu, Jinmei Chen, Xi Chen, Zhaoxiong Xie, Xiaoru Wang, Synthesis of "clean" and well-dispersive Pd nanoparticles with excellent electrocatalytic property on graphene oxide. Journal of the American Chemical Society. ,vol. 133, pp. 3693- 3695 ,(2011) , 10.1021/JA110313D
Leonid A. Aslanov, Yury A. Kabachii, Sergey Yu. Kochev, Boris V. Romanovsky, Petr M. Valetsky, Vladimir V. Volkov, Alexander V. Yatsenko, Valery N. Zakharov, Mesoporous soot-supported palladium as a heterogeneous catalyst for the Heck reaction in ionic liquids Mendeleev Communications. ,vol. 18, pp. 334- 335 ,(2008) , 10.1016/J.MENCOM.2008.11.017
Vadapalli Chandrasekhar, Arunachalampillai Athimoolam, New hybrid inorganic-organic polymers as supports for heterogeneous catalysis: a novel Pd(0) metalated cyclophosphazene-containing polymer as an efficient heterogeneous catalyst for the Heck reaction. Organic Letters. ,vol. 4, pp. 2113- 2116 ,(2002) , 10.1021/OL026098Z
Irina P. Beletskaya, Andrei V. Cheprakov, The Heck Reaction as a Sharpening Stone of Palladium Catalysis Chemical Reviews. ,vol. 100, pp. 3009- 3066 ,(2000) , 10.1021/CR9903048
Xuecheng Chen, Yuqing Hou, Hang Wang, Yang Cao, Junhui He, Facile Deposition of Pd Nanoparticles on Carbon Nanotube Microparticles and Their Catalytic Activity for Suzuki Coupling Reactions Journal of Physical Chemistry C. ,vol. 112, pp. 8172- 8176 ,(2008) , 10.1021/JP800610Q
Sha Maolin, Zhang Fuchun, Wu Guozhong, Fang Haiping, Wang Chunlei, Chen Shimou, Zhang Yi, Hu Jun, Ordering layers of [bmim][PF6] ionic liquid on graphite surfaces: molecular dynamics simulation. Journal of Chemical Physics. ,vol. 128, pp. 134504- 134504 ,(2008) , 10.1063/1.2898497