Sensitivity Enhancement of Benzene Sensor Using Ethyl Cellulose-Coated Surface-Functionalized Carbon Nanotubes

Figure 2

(a) XPS survey and (b) C 1s and (c) O 1s spectra of the P90-MWCNTs. (d) FESEM image of EC/P90-MWCNTs (inset: cross-sectional image).

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