4-Mercaptophenyldiphenylphosphine as linker to immobilize Pd onto the surface of magnetite nanoparticles. Excellent catalytic efficiency of the system after partial linker removal

A. Guarnizo; I. Angurell; M. D. Rossell

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4-Mercaptophenyldiphenylphosphine as linker to immobilize Pd onto the surface of magnetite nanoparticles. Excellent catalytic efficiency of the system after partial linker removal

机译：4-巯基苯二哌啶基膦作为接头以将Pd固定到磁铁矿纳米颗粒的表面上。局部接头去除后系统的优异催化效率

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The molecule 4-mercaptophenyldiphenylphosphine (Sdp) has been synthesized for use as a linker to immobilize Pd nanoparticles onto the surface of magnetite nanoparticles. The high loading shown by Sdp was attributed to the presence of one only anchoring (S) atom. The treatment of the resulting nanoparticles after Pd deposition with an aqueous solution of hydrogen peroxide permitted the removal of a large fraction (70%) of Sdp. Aberration corrected high-resolution scanning transmission electron microscopy images of the final nanocomposite showed that the Pd dispersion is constituted by very small nanoparticles along with a few isolated metal atoms. The partial loss of linker protection makes the Pd nanoparticles one of the most efficient catalysts for the Suzuki-Miyaura C-C cross coupling reaction and for hydrogenation of 4-nitrophenol and styrene.

机译：已经合成了分子4-巯基苯二苯基膦（SDP），用作将Pd纳米颗粒固定到磁铁矿纳米颗粒表面上的接头。 SDP所示的高负载归因于存在一个仅锚定原子原子。用过氧化氢水溶液PD沉积后得到所得纳米颗粒的处理允许除去大部分（70％）的SDP。像差校正的最终纳米复合材料的高分辨率扫描透射电子显微镜图像显示PD分散体由非常小的纳米颗粒以及一些分离的金属原子构成。接头保护的部分损失使Pd纳米颗粒成为Suzuki-Miyaura C-C交叉偶联反应的最有效催化剂之一，并用于4-硝基苯酚和苯乙烯的氢化。

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《RSC Advances》 |2015年第111期|共9页
作者
A. Guarnizo; I. Angurell; M. D. Rossell;
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Departament de Quimica Inorganica Universitat de Barcelona Marti i Franques 1-11 08028 Barcelona Spain.;

Departament de Quimica Inorganica Universitat de Barcelona Marti i Franques 1-11 08028 Barcelona Spain.;

Electron Microscopy Center Empa Swiss Federal Laboratories for Materials Science and Technology Uberlandstrasse 129 8600 Dubendorf Switzerland;

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中图分类化学;
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1. 4-Mercaptophenyldiphenylphosphine as linker to immobilize Pd onto the surface of magnetite nanoparticles. Excellent catalytic efficiency of the system after partial linker removal [J] . A. Guarnizo, I. Angurell, M. D. Rossell RSC Advances . 2015,第111期

机译：4-巯基苯二哌啶基膦作为接头以将Pd固定到磁铁矿纳米颗粒的表面上。局部接头去除后系统的优异催化效率
2. NO_x removal efficiency and N2 selectivity during selective catalytic reduction processes over Al2O3 supported highly cross-linked polyethylene catalysts [J] . Ahmad M. Abu-Jrai, Jehad A. Yamin, Khalid A. Ibrahim Journal of industrial and engineering chemistry . 2014,第4期

机译：在Al2O3负载的高度交联聚乙烯催化剂上进行选择性催化还原过程中的NO_x去除效率和N2选择性
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7. 4-Mercaptophenyldiphenylphosphine as linker to immobilize Pd onto the surface of magnetite nanoparticles. Excellent catalytic efficiency of the system after partial linker removal [O] . Guarnizo, A, Angurell Purroy, Inmaculada, Rosell, Monica, 2015

机译：4-巯基苯基二苯基膦作为连接剂将pd固定在磁铁矿纳米粒子的表面上。部分接头去除后系统具有优异的催化效率
8. Different Interfacial Behaviors of Peptides Chemically Immobilized on Surfaces with Different Linker Lengths and via Different Termini. [R] . Han, X., Liu, Y., Wu, F., 2014

机译：不同连接子长度和不同末端表面化学固定化肽的不同界面行为。

4-Mercaptophenyldiphenylphosphine as linker to immobilize Pd onto the surface of magnetite nanoparticles. Excellent catalytic efficiency of the system after partial linker removal

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