Potentiometric Ion Sensors Based on Poly(3,4-ethylenedioxythiophene) Doped with Carbon Nanotubes

Negatively charged carbon nanotubes (CNTs) were used as dopnats in the electrochemical synthesis of the conducting polymer Poly(3,4-ethylenedioxythiophene) (PEDOT). The resulted electroactive film (PEDOT/CNTs) was used either as ion sensing membrane in the fabrication of silver ion-selective electrode (Ag+-ISE) or as ion-to-electron transducer in a PVC-based potassium ion-selective electrode (K+-ISE). The analytical performance of the conducting polymer-based sensors was studied by potentiometric measurements. Scanning electron microscopy (SEM) measurements were carried out to study the morphology of the PEDOT(CNTs) film

کلیدواژه ها:

Potetiometric ion sensors ، carbon nanotubes ، conducting polymers ، PEDOT