Abstract
Polyaniline (PANI) conductive polymer is a unique energy storage electrode and sensor material. In this article, we report the use of electrochemistry as a quick and easy method to prepare PANI films, which are used as electrode materials to detect the selectivity to various acids. The sample was characterized and tested by XRD, scanning electron microscopy (SEM), BET, and cyclic voltammetry (CV). Various electrochemical parameters were measured and compared for various acids. As an electrode and sensor material, PANI film has different degrees of redox peaks for monobasic acid, dibasic acid, organic macromolecular acid, and inorganic acid. This type of sensor shows good repeatability and reproducibility, so this type of conductive polymer can be used as a sensor material to detect the minimum concentration of acid.
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