Effect of protonic acid concentration on electrical properties of fly ash magnetic beads/polyaniline composites
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Published:2023-07-26
Issue:38
Volume:140
Page:
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ISSN:0021-8995
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Container-title:Journal of Applied Polymer Science
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language:en
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Short-container-title:J of Applied Polymer Sci
Author:
Tao Yulun1ORCID,
Lv Yinru1,
Li Dawei1,
Li Shuo1,
Chen Lin2,
Fan Xingwen1,
Liu Fuchen1
Affiliation:
1. School of material engineering Anhui University of Science and Technology Huainan Anhui People's Republic of China
2. Catholic University of Pusan Busan South Korea
Abstract
AbstractMagnetic polyaniline nanofibers were synthesized by oxidative polymerization using protonic acid and fly ash magnetic beads as dopants and ammonium persulfate as oxidant. The synthesized magnetic polyaniline was characterized by FT‐IR, UV, XRD and SEM, and its morphology and structure were revealed. Polyaniline magnetic electrodes were prepared by pressing method, and their electrochemical properties were analyzed by cyclic voltammetry and constant current charge–discharge methods. The capacities of polyaniline powders doped with optimal concentration of hydrochloric acid and p‐toluene sulfonic acid at current density of 1 A/g were 250.75 and 410.5 F/g, respectively. The magnetic polyaniline doped with optimal acid concentration has good conductivity through impedance measurement analysis. A smooth and uniform film was prepared by pressing magnetic polyaniline powder and its photosensitivity was observed under different monochromatic illumination. The results show that the current and voltage have a linear relationship and that different monochromatic light energies can be distinguished significantly with the increase of voltage.
Subject
Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry