Radical polymer-wrapped SWNTs at a molecular level: High-rate redox mediation through a percolation network for a transparent charge-storage material

Wonsung Choi, Shota Ohtani, Kenichi Oyaizu, Hiroyuki Nishide, Kurt E. Geckeler

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)

Abstract

A transparent nanocomposite of a radical polymer, the poly(2,2,6,6- tetramethylpiperidine-1-oxy-4-yl methacrylate) (PTMA), and single-walled carbon nanotubes (SWNTs) display a reversible charging and discharging, allowing for full discharging in seconds. This is ascribed to the reversible electrochemical reaction of the pendant radical group in PTMA aided by both PTMA wrapping at a molecular level and the SWNT network for electrical conduction.

Original languageEnglish
Pages (from-to)4440-4443
Number of pages4
JournalAdvanced Materials
Volume23
Issue number38
DOIs
Publication statusPublished - 2011 Oct 11

Keywords

  • electrode-active materials
  • rechargeable batteries
  • redox polymers
  • single-walled carbon nanotubes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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