Figure 6.
Comparative SEM images taken at 10 kV and ×10,000 magnification, of the surfaces of samples (a) NW C-Ar5; (b) NW C-Ar5-Et5; and (c) NW C-Ar5-Et10; and (d) NW C-Cr1010; and (e) NW C-Cr1010-Et10.
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