1997
DOI: 10.1016/s0013-4686(96)00340-4
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Influence of ionic size on the mechanism of electrochemical doping of polypyrrole films studied by cyclic voltammetry

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Cited by 76 publications
(69 citation statements)
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“…Polypyrrole is formed in the oxidized state, PPy +2 (bipolaron state), and it can be reduced to the neutral, insulating form, PPy 0 . The perchlorate anion is frequently utilised for the electrochemical formation of polypyrrole films as it results in films with a high degree of uniformity and reproducibility [13].…”
Section: Introductionmentioning
confidence: 99%
“…Polypyrrole is formed in the oxidized state, PPy +2 (bipolaron state), and it can be reduced to the neutral, insulating form, PPy 0 . The perchlorate anion is frequently utilised for the electrochemical formation of polypyrrole films as it results in films with a high degree of uniformity and reproducibility [13].…”
Section: Introductionmentioning
confidence: 99%
“…6. Assuming that the charge transfer process of the film reduction is reversible and described by the Nernst equation, the formal potential for the film reduction process on the supporting electrolyte concentration is expressed by the following equation [51]:…”
Section: Resultsmentioning
confidence: 99%
“…Em contraste com matrizes inorgânicas, sistemas mais complexos como no caso de polímeros condutores eletrônicos (PCE's), onde se observa a participação de cátions, ânions e eventuais moléculas de solvente, a intercalação é melhor referida como processo de compensação de cargas ou de eletroneutralização e considerações adicionais devem ser levadas em conta na análise desses sistemas. De fato, diferentemente dos materiais inorgânicos, PCE's são caracterizados por uma estrutura macromolecular flexível que se manifesta em função das mudanças conformacionais, inchamento por entrada de solvente e interações mecânicas e eletrônicas entre contra-íons e cargas elétricas dos sítios da cadeia polimérica durante o processo de dopagem 62 e algumas hipóteses requeridas para a abordagem através do tratamento baseado nas isotermas de adsorção devem ser consideradas.…”
Section: Discussionunclassified