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

Wihatmoko Waskitoaji*, Takeo Suga, Hiroyuki Nishide

*この研究の対応する著者

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトルInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE
ページ13-18
ページ数6
DOI
出版ステータスPublished - 2009 12 1
イベントInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE - Jakarta, Indonesia
継続期間: 2009 6 92009 6 11

出版物シリーズ

名前AIP Conference Proceedings
1169
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

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

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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