Effect of doping anions on the degradation of electrochemical activity of conductive polypyrrole in NaOH solution
Source abstract
Abstract
Abstract The effect of doping anions on the degradation of electrochemical activity of polypyrrole (PPy)/A (A: SO42−, pTS−, PSS−, and GO) films in NaOH is investigated by various electrochemical methods and microscopic analyses. The degradation rates of PPy/A films follow first-order kinetics. The PPy/SO4 and PPy/GO films have two degradation stages with higher rate constants (k), while the PPy/pTS and PPy/PSS films just show one degradation stage with much lower k values. The exchange ability of doping anions with OH− and the penetration of OH− into the inner film are two crucial factors for the degradation of PPy in NaOH.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Conducting polymers and applications · Supercapacitor Materials and Fabrication · Analytical Chemistry and Sensors
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