Redox-active nitroxide radical polymers: From green catalysts to energy storage devices

Wihatmoko Waskitoaji, Takeo Suga, Hiroyuki Nishide

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Robust but redox-active radical polymers bearing 2,2,6,6- tetramethylpiperidin-N-oxy (TEMPO) were investigated as a metal-free, green mediator/catalyst for the oxidation of alcohol derivatives, and as a new electrode-active and charge-storage material. The TEMPO-mediated oxidation of the primary alcohol group of the natural cellulose improved the water-dispersivity of cellulose, and the polymer-supported catalysts or redox resins allow facile removal of catalysts from products by simple filtration. Other radical molecule (e.g. galvinoxyl) was also used as a mediator, which is coupled with the molecular oxygen. A reversible one-electron redox reaction of TEMPO allowed its application as an electrode-active material featuring high cyclability (> 500 cycles), relatively high battery electrode capacity (100-135 mAh/g), and fast electrode kinetics, leading to the high power rate capability of the battery. The radical polymer-based electrodes also provided good processability and shape flexibility, which promised the paper-like and wearable energy-storage devices.

Original languageEnglish
Title of host publicationInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE
Pages13-18
Number of pages6
DOIs
Publication statusPublished - 2009 Dec 1
EventInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE - Jakarta, Indonesia
Duration: 2009 Jun 92009 Jun 11

Publication series

NameAIP Conference Proceedings
Volume1169
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE
CountryIndonesia
CityJakarta
Period09/6/909/6/11

Keywords

  • Catalyst
  • Energy-storage devices
  • Radical polymer
  • TEMPO

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Waskitoaji, W., Suga, T., & Nishide, H. (2009). Redox-active nitroxide radical polymers: From green catalysts to energy storage devices. In International Workshop on Advanced Material for New and Renewable Energy, AMNRE (pp. 13-18). (AIP Conference Proceedings; Vol. 1169). https://doi.org/10.1063/1.3243242