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Nouveaux matériaux cellulosiques ultra-poreux et leurs carbones à partir de solvants verts

Abstract : Aerocellulose, a new ultra porous cellulose material was processed from green solvents: aqueous sodium hydroxide solution and ionic liquid (EMIMAc). Carbon material from pyrolysed aerocellulose is mesoporous and is very promising for energy storage and conversion applications. The study of each step of aerocellulose and its carbon counterpart preparation was performed. First viscosity analysis of cellulose solutions in a new ionic liquid solvent (EMIMAc) was performed. Regeneration kinetics of cellulose dissolved in NaOH8%/water solution, EMIMAc and BMIMCl as function of various elaboration parameters was studied. The influence of preparation conditions on the mechanical behaviour of aerocellulose, on the texture of aerocellulose and its carbons counterparts was studied. The following industrial applications were tested: Regenerated cellulose as membrane for filtration ; Pyrolysed aerocellulose as electrodes in supercapacitor and primary cell Li/SOCl2 batteries.
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Submitted on : Friday, September 2, 2011 - 9:34:42 AM
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  • HAL Id : pastel-00618528, version 1

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Romain Sescousse. Nouveaux matériaux cellulosiques ultra-poreux et leurs carbones à partir de solvants verts. Matériaux. École Nationale Supérieure des Mines de Paris, 2010. Français. ⟨NNT : 2010ENMP0073⟩. ⟨pastel-00618528⟩

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