Quartz crystal microbalance study on redox reaction mechanism of polyaniline

Daifuku, Hideharu; Kawagoe, Takahiro; Matsunaga, Takuro; Yamamoto, Nobushige; Ohsaka, Takeo; Oyama, Noboru

doi:10.1016/0379-6779(91)91200-t

Cited by 16 publications

(7 citation statements)

References 5 publications

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“…Relying on the knowledge of the mechanism of chemical synthesis, it is generally accepted that the first step of the mechanism of electrochemical polymerization is formation of the primary cation-radicals by monomer oxidation at the anode [4,[29][30][31][32]. These species have essential role in the outcome of the electrochemical polymerization.…”

Section: The Complexity Of Electrochemical Synthesismentioning

confidence: 99%

Electrochemical synthesis of electroconducting polymers

Gvozdenović¹,

Jugović

Stevanović³

et al. 2014

Hem Ind

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Electroconducting polymers from the group of synthetic metals are extensively investigated due to numerous properties perspective in practical application. These materials may be synthesized by both chemical and electrochemical procedures. Chemical synthesis is suitable when bulk quantities of the polymer are necessary and up to date it presents dominant commercial method of producing electroconducting polymers. Nevertheless, the electrochemical synthesis has its advantages; it avoids usage of oxidants since conducting polymeric material is obtained at anode upon application of positive potential, leading to increased purity. On the other hand, since the polymer is deposited onto electrode, further electrochemical characterization is facilitated. Owing to actuality of the research in the field, this text aims to describe important aspects of electrochemical synthesis of electroconducting polymers, with special emphasis to polyaniline and polypyrrole.

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Section: The Complexity Of Electrochemical Synthesismentioning

confidence: 99%

Electrochemical synthesis of electroconducting polymers

Gvozdenović¹,

Jugović

Stevanović³

et al. 2014

Hem Ind

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show abstract

“…However, the redox activity of these films is recognized to be accompanied by anion movement but not cation [2]. Therefore, in such a case a lot of electrolyte solution is usually necessary to maintain the concentration of the electrolyte constant during the charging processes.…”

Section: Introductionmentioning

confidence: 99%

Significant effects of poly(3,4-ethylenedioxythiophene) additive on redox responses of poly(2,5-dihydroxy-1,4-benzoquinone-3,6-methylene) cathode for rechargeable Li batteries

Oyama

Sarukawa

Mochizuki

et al. 2009

Journal of Power Sources

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“…It was shown that cation or anion transport is accompanied by water transport in PPy films and that the ionic conductivity depends on the number of accompanying waters per ion and the ion−ion interactions inside the film. Because of its important applications, such as the rechargeable Li battery, a considerable amount of effort, if not as much as in aqueous solutions, has also been devoted to the mass transport study in nonaqueous solutions. , However, a full understanding of its mechanism has not been achieved yet. Furthermore, there has been no systematic report on the effect of electropolymerization condition on the mass transport behaviors of conducting polymers in nonaqueous solutions as well as aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Dependence of the Electrochemical Behavior of Poly(N-Phenylpyrrole) Films on the Type of Anion and Solvent Used in the Electropolymerization

1999

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The mass transport behavior during the redox reaction of poly(N-phenylpyrrole) (PPhPy) films in propylene carbonate (PC) and acetonitrile (AN) solutions has been studied using the cyclic electrochemical quartz crystal microbalance (EQCM) technique and the electrochemical impedance technique. It was found that the type of dopant anion and solvent used in the electropolymerization affects the amount and the direction of solvent transport during the redox reaction of a PPhPy film. It was also shown that the charge capacity and ionic resistance of a PPhPy film depends highly on the type of dopant anion and solvent used in the electropolymerization. The PPhPy film grown in a PF 6 --containing solution shows larger charge capacity and lower ionic resistance than the film grown in a ClO 4 --containing solution. Moreover, the PPhPy film grown in a PC solution shows similar to or larger charge capacity and lower ionic resistance than the film grown in an AN solution. These dependences on the electropolymerization condition were discussed in connection with the morphology of a film.

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Quartz crystal microbalance study on redox reaction mechanism of polyaniline

Cited by 16 publications

References 5 publications

Electrochemical synthesis of electroconducting polymers

Electrochemical synthesis of electroconducting polymers

Significant effects of poly(3,4-ethylenedioxythiophene) additive on redox responses of poly(2,5-dihydroxy-1,4-benzoquinone-3,6-methylene) cathode for rechargeable Li batteries

Dependence of the Electrochemical Behavior of Poly(N-Phenylpyrrole) Films on the Type of Anion and Solvent Used in the Electropolymerization

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