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A facile preparation of palladium nanoparticles supported on magnetite/s-graphene and their catalytic application in Suzuki-Miyaura reaction
被引:100
|作者:
Hu, Jiefeng
[1
]
Wang, Yuping
[1
]
Han, Min
[1
]
Zhou, Yaoming
[1
]
Jiang, Xiaoqing
[1
]
Sun, Peipei
[1
]
机构:
[1] Nanjing Normal Univ, Coll Chem & Mat Sci, Jiangsu Key Lab New Power Batteries, Nanjing 210097, Jiangsu, Peoples R China
基金:
中国国家自然科学基金;
关键词:
RECYCLABLE CATALYSTS;
ACTIVE CATALYSTS;
PD NANOPARTICLES;
GRAPHITE OXIDE;
3-PHASE TEST;
COMPOSITE;
METAL;
SHEETS;
D O I:
10.1039/c2cy20263h
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Fe3O4 and Pd nanoparticles were assembled on sulfonated graphene (s-G) by an easy chemical approach and characterized by transmission electron microscopy, X-ray diffraction and energy dispersive X-ray spectroscopy. The resulting material could be dispersed homogeneously in water or water/ethanol and further used as an excellent semi-heterogeneous catalyst for the Suzuki-Miyaura cross-coupling reaction in an environmentally friendly solvent under ligand-free ambient conditions. The high heterogeneous catalytic activity appears to be due to the small size of Pd nanoparticles and homogeneous distribution of the nanoparticles on the Fe3O4/s-G matrix. In addition, the catalytic activity did not deteriorate even after repeated applications, which may be due to the easy and efficient magnetic separation of the catalyst and the high dispersion and stability of the catalyst in an aqueous solution.
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页码:2332 / 2340
页数:9
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