Ionic-liquid-grafted rigid poly(p-phenylene) microspheres: efficient heterogeneous media for metal scavenging and catalysis.
Ionic-liquid-grafted rigid poly(p-phenylene) microspheres: efficient heterogeneous media for metal scavenging and catalysis.
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DOI：
10.1002/chem.200902495
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发表时间：
2010-02
期刊：
影响因子：
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通讯作者：
Shenghai Li;Junhua Wang;Y. Kou;Suobo Zhang
中科院分区：
文献类型：
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作者：
Shenghai Li;Junhua Wang;Y. Kou;Suobo Zhang
Novel guanidinium ionic liquid-grafted rigid poly(p-phenylene) (PPPIL) microspheres have been developed for metal scavenging and catalysis. The noble-metal nanoparticles supported on the microspheres surface can be used as efficient heterogeneous catalysts. The combination of nanoparticles and ionic liquid fragments on the microsphere surfaces enhance the activity and durability of the catalyst. The PPPILPd(0) catalyst has been tested in the Suzuki cross-coupling reaction, and exhibits much higher catalytic activity than Pd catalysts supported on porous polymer matrices. The PPPILPd(0) catalyst can be recycled at least for nine runs without any significant loss of activity. The present approach may, therefore, have potential applications in transition-metal-nanocatalyzed reactions.
