Abstract
Mainly capacitive electrochemical devices have been developed by depositing ion conducting Nafion/Polypyrrole mixtures, onto the gap between gold and Multi Walled Carbon Nanotubes (MWCNTs) electrodes, applied on copier grade transparency sheets. The electrical properties of the MWCNTs/Nafion:Polypyrrole/Au devices are investigated by means of frequency dependent impedance measurements, and time domain electrical characterization. The results of current measurements performed in 0.1 M NaOH aqueous solutions, in response to triangular voltage inputs, show that the MWCNTs/Nafion:Polypyrrole/Au devices reversibly respond to the presence of H2O2, with a lower detection limit of about 5 μM.
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