- Conference date: 9–11 June 2009
- Location: Jakarta (Indonesia)
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.
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