Upcycling of polyurethane waste by mechanochemistry: synthesis of N-doped porous carbon materials for supercapacitor applications

Autor: Christina Schneidermann, Pascal Otto, Desirée Leistenschneider, Sven Grätz, Claudia Eßbach, Lars Borchardt
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 1618-1627 (2019)
Druh dokumentu: article
ISSN: 2190-4286
DOI: 10.3762/bjnano.10.157
Popis: We developed an upcycling process of polyurethane obtaining porous nitrogen-doped carbon materials that were applied in supercapacitor electrodes. In detail, a mechanochemical solvent-free one-pot synthesis is used and combined with a thermal treatment. Polyurethane is an ideal precursor already containing nitrogen in its backbone, yielding nitrogen-doped porous carbon materials with N content values of 1–8 wt %, high specific surface area values of up to 2150 m2·g−1 (at a N content of 1.6 wt %) and large pore volume values of up to 0.9 cm3·g−1. The materials were tested as electrodes for supercapacitors in aqueous 1 M Li2SO4 electrolyte (100 F·g−1), organic 1 M TEA-BF4 (ACN, 83 F·g−1) and EMIM-BF4 (70 F·g−1).
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