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ABSTRACT: The hollow Au nanospheres were successfully prepared by the template method. The poly(styrene-co-2-aminoethyl methacrylate hydrochloride) (P(St-co-AEMH)) nanoparticles synthesized by the emulsion polymerization were used as the templates. After coating by Au colloidal
nanoparticles and the formation of Au shells, the interior templates were etched out by sulfuric acid, leading to the formation
of Au hollow nanospheres. The structure and morphology of the nanoparticles and hollow nanospheres were carefully investigated
by the fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy
(TEM), energy-dispersive X-ray analysis (EDX), wide-angle X-ray diffractometer (WAXD), and thermal gravimetric analysis (TGA)
techniques.
Journal of Materials Science 04/2012; 44(17):4710-4714. · 2.02 Impact Factor
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ABSTRACT: A versatile approach to fabricate nanoparticles with multiple functionalities through the combined use of both surface-initiated ATRP and acidolysis by H2S techniques was demonstrated. The hybrid nanoparticles exhibited the core-shell structure having the magnetite nanoparticles as the core and the polymethacrylate as the shell with PbS nanoparticles distributing in the shell. The structure and morphology of the synthesized nanoparticles were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The optical and magnetic properties of the nanoparticles were investigated by UV-Vis spectroscopy, photoluminescence spectroscopy and vibrating sample magnetometer (VSM), respectively. It is observed that the absorption and emission behaviors of the Fe3O4@PbS hybrid nanoparticles were seriously influenced by the ATRP time and the reaction time with H2S. The saturated magnetization (Ms) decreased with the increase of ATRP time due to the formation of thicker shells coating on the surfaces of magnetite nanoparticles.
Journal of Nanoscience and Nanotechnology 01/2011; 11(1):98-105. · 1.56 Impact Factor
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ABSTRACT: Palladium hollow nanospheres were prepared by the adsorption of metal nanoparticles onto functionalized gamma-Al2O3 templates. The silanizing agent 3-mercaptopropyl trimethoxysilane was reacted with the surface of the gamma-Al2O3 templates to afford thiol-terminal groups. Metal layers of palladium were coated directly on the gamma-Al2O3 templates by increasing the temperature stepwise. Then, the dissolution of the gamma-Al2O3 template using 40 wt% HF solution enabled the formation of self-organized metallic palladium hollow nanospheres. The palladium hollow nanospheres were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDX), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) techniques.
Journal of Nanoscience and Nanotechnology 10/2009; 9(10):5790-4. · 1.56 Impact Factor
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Journal of Polymer Science Part A Polymer Chemistry 04/2006; 44(11):3434 - 3443. · 3.92 Impact Factor
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Macromolecular Chemistry and Physics 12/2005; 206(24):2483 - 2489. · 2.36 Impact Factor
