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. Author manuscript; available in PMC: 2018 Feb 21.
Published in final edited form as: Anal Chem. 2015 Feb 10;87(5):2779–2787. doi: 10.1021/ac504101a

Figure 4.

Figure 4

SEM image of (A): a PIM/MWNT bilayer composite and (B) a PIM/CB bilayer composite on a gold-coated QCM crystal. The carbon nanotubes are well-dispersed and display the three-dimensional tubular network of the sorbent nanomaterial. The CB carbon nanopowder appears more clustered.