Figure 2.

FE-SEM and TEM images of C450, C450N, and C500N. FE-SEM images of (a) C450, (b) C450N, and (c) C500N, and the TEM images of (d) C450, (e) C450N, and (f) C500N (insets are the corresponding high-magnification images).

Ding et al. Nanoscale Research Letters 2013 8:545   doi:10.1186/1556-276X-8-545
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