Figure 2.
XP spectra of MWCNTs-1 and C 1s peak split spectra (a), MWCNTs-2 and C 1s peak split spectra (b), MWCNTs-3 and C 1s peak split spectra (c), MWCNTs-4 and C 1s peak split spectra (d), and MWCNTs-5 and C 1s peak split spectra (e).
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