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

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 publicationAIP Conference Proceedings
Pages13-18
Number of pages6
Volume1169
DOIs
Publication statusPublished - 2009
EventInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE - Jakarta
Duration: 2009 Jun 92009 Jun 11

Other

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

Fingerprint

energy storage
catalysts
electrodes
polymers
cellulose
electric batteries
alcohols
oxidation
resins
flexibility
cycles
kinetics
oxygen
products
metals
water
molecules
electrons

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Redox-active nitroxide radical polymers : From green catalysts to energy storage devices. / Waskitoaji, Wihatmoko; Suga, Takeo; Nishide, Hiroyuki.

AIP Conference Proceedings. Vol. 1169 2009. p. 13-18.

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

Waskitoaji, W, Suga, T & Nishide, H 2009, Redox-active nitroxide radical polymers: From green catalysts to energy storage devices. in AIP Conference Proceedings. vol. 1169, pp. 13-18, International Workshop on Advanced Material for New and Renewable Energy, AMNRE, Jakarta, 09/6/9. https://doi.org/10.1063/1.3243242
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