Influence of the doped counteranions on the penetration of H+ cations through poly(N-methylpyrrole)
โ Scribed by Jianyong Ouyang; Yongfang Li
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 418 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
The reduction of H+ cations on the Pt electrode coated with poly(N-methylpyrrole) (PNMP) film was studied in an acidic aqueous solution. The reduction depends strongly on the counteranions originally doped in PNMP during polymerization. H+ cations can penetrate the neutral or overoxidized film from PNMP(Ts0-), in which the H+ diffusion coefficient is estimated as cm2 s-l by the potential step chronoamperometry method. But the neutral or overoxidized film from PNMP(N0,) is closed for H+ penetration.
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