Synthesis of nickel nanoparticles and carbon encapsulated nickel nanoparticles supported on carbon nanotubes |
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Authors: | Jipeng Cheng Xiaobin Zhang |
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Affiliation: | a Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China b Department of Earth Science, Zhejiang University, Hangzhou 310027, PR China |
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Abstract: | Nickel nanoparticles were prepared and uniformly supported on multi-walled carbon nanotubes (MWCNTs) by reduction route with CNTs as a reducing agent at 600 °C. As-prepared nickel nanoparticles were single crystalline with a face-center-cubic phase and a size distribution ranging from 10 to 50 nm, and they were characterized by transmission electron microscopy (TEM), high-resolution TEM and X-ray diffraction (XRD). These nickel nanoparticles would be coated with graphene layers, when they were exposed to acetylene at 600 °C. The coercivity values of nickel nanoparticles were superior to that of bulk nickel at room temperature. |
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Keywords: | Carbon nanotube Nickel nanoparticles Microstructure Carbon encapsulation Magnetic property |
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