A facile method for the synthesis of Co-core Au-shell nanohybrid

被引：7
作者：
Sardar, Debasmita [1 ,2 ]
Neogi, S. K. [2 ,3 ]
Bandyopadhyay, S. [2 ,3 ]
Satpati, Biswarup [4 ]
Jain, Ruchi [5 ,6 ]
Gopinath, Chinnakonda S. [5 ,6 ]
Bala, Tanushree [1 ,2 ]
机构：
[1] Univ Calcutta, Dept Chem, Kolkata 700009, W Bengal, India
[2] Univ Calcutta, CRNN, Kolkata 700098, India
[3] Univ Calcutta, Dept Phys, Kolkata 700009, W Bengal, India
[4] Saha Inst Nucl Phys, Surface Phys & Mat Sci Div, Kolkata 64, India
[5] CSIR Natl Chem Lab, Catalysis Div, Pune 411008, Maharashtra, India
[6] CSIR Natl Chem Lab, Ctr Excellence Surface Sci, Pune 411008, Maharashtra, India
来源：
NEW JOURNAL OF CHEMISTRY | 2014年 / 38卷 / 09期
关键词：
GOLD NANOPARTICLES; MAGNETIC-PROPERTIES; AT-AU; CHEMICAL-SYNTHESIS; NICKEL NANOPARTICLES; NANORODS; POLYMER; SILVER; AG; CU;
D O I：
10.1039/c4nj00733f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Heterostructured Co-Au core-shell nanoparticles have been synthesized by reducing AuCl4- ions on cobalt nanoparticles after a minor but effective modification of cobalt surface by an amine. The core shell morphology is emphatically confirmed by thorough investigation through UV-Vis spectroscopy, X-ray photoelectron spectroscopy (XPS), and transmission electron microscopic analysis (TEM). The chemical composition and topography were determined using STEM-HAADF analysis and EFTEM imaging. Fourier transform infrared (FTIR) spectroscopy confirms the surface modification of Co nanoparticles and the interactions involved between the ligands and the core and shell metals at various steps of the synthetic process. The magnetic properties confirm the material to be superparamagnetic in nature.
引用
收藏
页码：4107 / 4114
页数：8
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