Preparation and Characterization of Cu-SiO2 Nanoparticles

Young Hwan Kim; Beong Gi  Jo; Jee Hean Jeong; Young Soo Kang

doi:10.4028/www.scientific.net/SSP.121-123.255

Paper Titles

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The Carbon Nanotube Based Nanocomposite with Enhanced Thermal Conductivity
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One-Step Preparation of Fibrous Aggregates of Gold Nanoparticles Using Aniline as Reducing Agent as well as Monomer
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Preparation and Characterization of Cu-SiO₂ Nanoparticles
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C₇₀ Nanowire Arrays Prepared by a Simple Electrophoretic Deposition Method
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Preparation of PS-Cores/Au Nanoparticles and Polyaniline-Shells Sub-Microspheres via Layer-by-Layer Method
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Microstructure and Properties of (Tb,Sm)CoSi/Cr Series Thin Films for Permanent Magnets
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Preparation and Characterization of Cu-SiO₂ Nanoparticles

Abstract:

A room temperature route for doping silica particles with Cu nanoparticles to achieve hybrid structures is introduced. First, silica nanoparticles were synthesized according to the well-known Stöber method by hydrolysis and condensation of TEOS in a mixture of ethanol with water, using ammonia as catalyst to initiate the reaction. These SiO2 nanoaprticles were dried at 100 oC. We measured the size of these nanoparticles with transmission electron microscopy (TEM). Second, Cu-SiO2 nanoparticles were synthesized by reaction with CuCl2 and SiO2 nanoparticles in presence of catalyst at room temperature for 12 hrs. Results show silica nanoparticles of about 70 nm size with regularly deposited Cu nanoparticles. Cu-SiO2 nanoparticles were investigated with TEM images, energy dispersive X-ray analysis (EDX) spectrum and so on.