Pd nanoparticles deposited on poly(lactic acid) grafted carbon nanotubes: synthesis, characterization and application in Heck C-C coupling reaction.
Pd nanoparticles deposited on poly(lactic acid) grafted carbon nanotubes: synthesis, characterization and application in Heck C-C coupling reaction.
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沉积在聚（乳酸）接枝碳纳米管上的PD纳米颗粒：在HECK C-C偶联反应中的合成，表征和应用。
DOI：
10.1016/j.apcata.2011.03.050
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发表时间：
2011-05-31
影响因子：
5.5
通讯作者：
Oki, Aderemi
中科院分区：
文献类型：
--
作者：
Neelgund, Gururaj M.;Oki, Aderemi
本文通过将聚乳酸（PLA）共价接枝到碳纳米管（CNTs）上，然后沉积Pd纳米粒子，合成了一种新型的f-CNTs-Pd纳米催化剂。在接枝PLA之前，CNT用HNO 3/H2SO 4的混合物氧化，并依次用亚硫酰氯活化。然后将PLA接枝的CNT（f-CNT）用作原位沉积Pd纳米颗粒的平台。采用UV-vis、FTIR和拉曼光谱、粉末XRD、能量色散谱和热重分析等方法对f-CNTs-Pd纳米催化剂的形成进行了分析。使用扫描和透射电子显微镜的纳米催化剂的形貌进行了表征。发现f-CNTs稳定的Pd纳米粒子更有效地促进芳基卤和丙烯酸正丁酯之间的Heck交叉偶联反应。f-CNTs-Pd纳米催化剂再生三个反应循环，其活性没有任何显著损失。
Herein we described the synthesis of a novel f-CNTs-Pd nanocatalyst by covalent grafting of poly(lactic acid) (PLA) onto carbon nanotubes (CNTs) and subsequent deposition of Pd nanoparticles. Prior to grafting of PLA, CNTs were oxidized with a mixture of HNO3/H2SO4 and successively activated with thionyl chloride. The PLA grafted CNTs (f-CNTs) were then used as platform for in-situ deposition of Pd nanoparticles. The formation of f-CNTs-Pd nanocatalyst was analyzed by UV-vis, FTIR and Raman spectroscopy, powder XRD, energy dispersive spectroscopy and thermogravimetric analysis. The morphologies of the nanocatalyst were characterized using scanning and transmission electron microscopes. The f-CNTs stabilized Pd nanoparticles are found to be more effective in the promotion of Heck cross-coupling reaction between aryl halides and n-butyl acrylate. The f-CNTs-Pd nanocatalyst was regenerated for three cycles of reaction without any significant loss in its activity.
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影响因子：
3.9
作者：
Chergui, Sarmia Mahouche;Ledebt, Alexandre;Chehimi, Mohamed M.
通讯作者：
Chehimi, Mohamed M.
影响因子：
56.9
作者：
O'Connell, MJ;Bachilo, SM;Smalley, RE
通讯作者：
Smalley, RE
影响因子：
--
作者：
Neelgund GM;Oki A
通讯作者：
Oki A
影响因子：
64.8
作者：
IIJIMA, S
通讯作者：
IIJIMA, S
影响因子：
56.9
作者：
Zheng, M;Jagota, A;Walls, DJ
通讯作者：
Walls, DJ