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

Wihatmoko Waskitoaji, Takeo Suga, Hiroyuki Nishide

研究成果: Conference contribution

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.

元の言語English
ホスト出版物のタイトルAIP Conference Proceedings
ページ13-18
ページ数6
1169
DOI
出版物ステータスPublished - 2009
イベントInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE - Jakarta
継続期間: 2009 6 92009 6 11

Other

OtherInternational Workshop on Advanced Material for New and Renewable Energy, AMNRE
Jakarta
期間09/6/909/6/11

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

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

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

研究成果: Conference contribution

Waskitoaji, W, Suga, T & Nishide, H 2009, Redox-active nitroxide radical polymers: From green catalysts to energy storage devices. : AIP Conference Proceedings. 巻. 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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