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High yields of multi-walled carbon nanotubes are synthesized by chemical vapor deposition of acetylene on palladium nanoparticles supported on porous SiO2. HRTEM results reveal that the carbon nanotubes have novel conical inner structure. By changing the content of palladium in the catalyst, we obtained palladium nanoparticles with different diameter distribution. It was found that the apex angles...
Conventional nanoparticles were directly synthesized in single film by PVD or CVD process. In this paper, we proposed a novel approach to the growth of SiC nano-particles (np-SiC) by thermal annealing of C/Si multilayers deposited on single crystalline Si (100) substrates using ion beam sputtering system (IBS). The deposition of C/Si multilayers was performed at room temperature under ultra high vacuum...
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