Enhancement of Pd-catalyzed Suzuki-Miyaura coupling reaction assisted by localized surface plasmon resonance of Au nanorods
Enhancement of Pd-catalyzed Suzuki-Miyaura coupling reaction assisted by localized surface plasmon resonance of Au nanorods
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DOI：
10.1016/j.cattod.2014.05.019
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发表时间：
2015-03
期刊：
影响因子：
5.3
通讯作者：
Meicheng Wen;S. Takakura;Kojirou Fuku;K. Mori;H. Yamashita
中科院分区：
文献类型：
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作者：
Meicheng Wen;S. Takakura;Kojirou Fuku;K. Mori;H. Yamashita
利用金纳米棒诱导的局域表面等离子体共振(LSPR)来提高Pd驱动的Suzuki-Miyaura偶联反应的催化活性。用UV-Vis光谱研究了Pd-Au/SiO_2样品的光学性质，发现在低能区有较强的吸收带，纳米Pd/Au纳米棒的比例对Pd-Au合金的光学性能和催化性能有重要影响。在光照条件下，Pd-Au杂化催化剂用于铃木-宫浦偶联反应的最佳质量比为1：0.5。活性的提高可以归因于Au纳米棒和Pd纳米颗粒之间的协同促进作用，有效地转换太阳能，产生高能电子来激活钯，并提高反应溶液的温度。
Localized surface plasmon resonance (LSPR) induced by Au nanorods was employed to enhance the catalytic activity of Pd-driven Suzuki–Miyaura coupling reaction under light irradiation at ambient temperatures. The optical properties of the obtained Pd–Au/SiO2samples were investigated by UV–vis spectroscopy, which exhibit intense absorption bands in the low energy region, and the ratio between Pd NPs and Au nanorods has a significant impact on turning the optical property and catalytic performance of Pd–Au alloy. The optimized weight ratio of Pd–Au hybrid catalyst for Suzuki–Miyaura coupling reaction under light irradiation was found to be 1:0.5. The enhanced activity can be attributed to the cooperative promoting effects between Au nanorods and Pd nanoparticles in effective conversion of solar energy for generation of energetic electrons to activate the palladium and increasing temperature in the reaction solution.