Magnetic-Field-Induced Deactivation of Polypyrrole Films in Repeated Redox Cycles

Iwao Mogi, Kazno Watanabe

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Magnetic field effects on the durability of anion-doped polypyrrole (PPy/anion) films were studied by measuring successive cyclic voltammograms in a cryocooler-cooled superconducting magnet. The deactivation, which means positive shifts of the anodic peak potential, was observed in PPy/ClO4- and PPy/Cl- films under the magnetic fields of 2 and 5 T. This magnetic-field-induced deactivation has a novel aspect that is an accumulative effect of the magnetic fields. On the other hand, the degradation of PPy/p-toluenesulfonate films, which means a current decrease in the voltammograms, was not affected by the magnetic field of 5 T.

Original languageEnglish
Pages (from-to)2337-2340
Number of pages4
JournalBulletin of the Chemical Society of Japan
Issue number9
Publication statusPublished - 1997 Sep

ASJC Scopus subject areas

  • Chemistry(all)


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