Abstract:To control the length and morphology of carbon nanotubes(CNTs) is difficult in its producing process. Influencing factors of length and morphology of carbon nanotubes have been analyzed in the catalytic chemical vapor deposition (CCVD) process. According to the growth characteristic of carbon nanotubes, the diffusion model was developed. Over time, the diffusion potential decreases due to a reduction in the carbon atom concentration gradient. With the model, the shape of catalytic particle is analyzed. From th… Show more
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