4.6 Article

Effect of Acid Blue dyes on the electrochemical capacitance of polypyrrole

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MATERIALS RESEARCH BULLETIN
卷 168, 期 -, 页码 -

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2023.112455

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Polypyrrole; Acid Blue; Organic dyes; Capacitance; Electrochemical polymerization

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The influence of organic dyes on the preparation of polypyrrole (PPy) is mainly manifested in changes in morphology and an increase in conductivity. Adding Acid Blue 25 (AB25) and Acid Blue 129 (AB129) during the electrosynthesis of pyrrole supports the modification of PPy morphology and leads to a change in its electrochemical behavior and stability. PPyAB25 exhibits higher electroactivity, capacitance, and diffusion-controlled capacitive contribution compared to PPyAB129.
The influence of organic dyes in polypyrrole (PPy) preparation has been significantly manifested in the change of its morphology and increase in conductivity. The addition of Acid Blue 25 (AB25) and Acid Blue 129 (AB129) during the electrosynthesis of pyrrole supports the modification of PPy morphology (forming fibers and smaller globular structures, respectively) and led to a switch in PPy electrochemical behavior as well as stability. PPyAB25 exhibits higher electroactivity, capacitance, and diffusion-controlled capacitive contribution than PPyAB129.

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