Figure 3.
FE–SEM images of CNF aerogel (a,b), CNT (c), GnP (d), CNF–CNT aerogel (e,f) and CNF–GnP aerogel (g,h). The insets in (c,d,f,h) are FE–SEM images of CNT, GnP, CNF–CNT and CNF–GnP at a high magnification, respectively.
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