Activation barriers provide insight into the mechanism of self-discharge in polypyrrole

Henrik Olsson, Maria Strømme, Leif Nyholm, Martin Sjödin*

*この研究の対応する著者

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Conducting polymers are envisioned to play a significant role in the development of organic matter based electrical energy conversion and storage systems. However, successful utilization of conducting polymers relies on a fundamental understanding of their inherent possibilities and limitations. In this report we studied the temperature dependence of the self-discharge in polypyrrole and show that the rate of self-discharge is kinetically controlled by a polymer intrinsic endergonic electron transfer reaction forming a reactive intermediate. We further show that this intermediate is intimately linked to a process known as overoxidation. This process is general for most, if not all, p-doped conducting polymers irrespective of medium. The results herein are therefore expected to significantly impact the development of future energy storage systems with conducting polymer based components.

本文言語English
ページ(範囲)29643-29649
ページ数7
ジャーナルJournal of Physical Chemistry C
118
51
DOI
出版ステータスPublished - 2014 12 26
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

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