A core-shell-satellite structured Fe3O4@MS-NH2@Pd nanocomposite: a magnetically recyclable multifunctional catalyst for one-pot multistep cascade reaction sequences

被引：49
|
作者：
Li, Ping [1 ]
Yu, Yu [1 ]
Liu, Hua [1 ]
Cao, Chang-Yan [1 ]
Song, Wei-Guo [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, BNLMS, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China
来源：
NANOSCALE | 2014年 / 6卷 / 01期
基金：
中国国家自然科学基金;
关键词：
MESOPOROUS SILICA; BASIC SITES; NANOPARTICLES; MICROSPHERES; STABILITY; RESONANCE; ACID;
D O I：
10.1039/c3nr04427k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A hierarchical core-shell-satellite structured composite system Fe3O4@MS-NH2@Pd, which was composed of Pd nanoparticles well-dispersed on an amino group functionalized mesoporous silica (MS-NH2) nanosphere, and superparamagnetic Fe3O4 nanoparticles scattered inside the silica sphere, was prepared by using a facile procedure. The composite combined the catalytic properties of amino groups and Pd nanoparticles with superparamagnetic properties of magnetite into a single platform. This integrated nanosystem acted as an efficient magnetically recyclable noble metal-base multifunctional nanocatalyst and showed excellent catalytic activity, selectivity and stability for the direct synthesis of alpha-alkylated nitriles under mild conditions through facile one-pot multistep cascade reaction sequences.
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页码：442 / 448
页数：7
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