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Nanostructured carbons from cellulose-derivative-based aerogels for electrochemical energy storage and conversion: evaluation as EDLC electrode material

Abstract : Nanostructured carbons are widely used in electrochemical energy storage and conversion devices, e.g. as electrode material for fuel cells, batteries, or still EDLCs (Electric Double Layer Capacitor). The carbon structure and surface chemistry are crucial parameters and consequently need to be adjusted to the specific application's requirements. This PhD thesis has aimed at developing a new family of nanostructured carbons: aerogels from renewable organic sol-gel precursors, i.e. pyrolyzed cellulose-acetate-based aerogels. Sol-gel synthesis parameters and drying conditions of the organic gel, as well as pyrolysis parameters (particularly the influence of the sol composition, the type of catalyst used in the sol-gel synthesis step, pyrolysis temperature, and atmosphere) have been varied systematically in order to generate a broad range of structurally different cellulose-acetate-based carbonaceous aerogels. Further, cellulose-acetate-based carbon aerogels have been exposed to different post-treatments (e.g. introduction of oxygen and nitrogen-containing surface functional groups) to create cellulose-acetate-based carbon aerogels with different surface chemistries. Finally, the performance of these cellulose-acetate-based carbon aerogels has been analyzed as EDLC electrode material.
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https://pastel.archives-ouvertes.fr/pastel-00547497
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Submitted on : Thursday, December 16, 2010 - 3:08:41 PM
Last modification on : Wednesday, October 14, 2020 - 4:02:21 AM
Long-term archiving on: : Monday, November 5, 2012 - 1:55:10 PM

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  • HAL Id : pastel-00547497, version 1

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Claudia Hildenbrand. Nanostructured carbons from cellulose-derivative-based aerogels for electrochemical energy storage and conversion: evaluation as EDLC electrode material. Other. École Nationale Supérieure des Mines de Paris, 2010. English. ⟨NNT : 2010ENMP0022⟩. ⟨pastel-00547497⟩

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