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. 2009 Jun 12;9(6):4635–4648. doi: 10.3390/s90604635

Figure 4.

Figure 4.

The SEM images of the surfaces of (a) PANI/Pt, (b) SBA-15/PANI/Pt, and (c) GA/SBA-15(HRP)/PANI/Pt electrodes.