Research Article

Novel Method of Evaluating the Purity of Multiwall Carbon Nanotubes Using Raman Spectroscopy

Figure 2

SEM images of purity-controlled MWCNT samples by mixing amorphous carbon particles and highly pure MWCNTs: (a) 0%, (b) 20%, (c) 40%, (d) 60%, (e) 80%, and (f) 100%.
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(b)
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(c)
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(d)
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(f)