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Bio-based 1,3-diisobutyl imidazolium hydrogen oxalate [iBu 2 IM](HC 2 O 4 ) as CO 2 shuttle

Abstract : This manuscript describes the using of biosourced L-valine, oxalic acid and glyoxal to produce a biobased imidazolium hydrogen oxalate [iBu(2)IM](HC2O4) which is converted to its related hydrogen carbonate salt by a simple electrolysis without using strong base. The addition of weak protic acids to the latter compound leads to a rapid and quantitative CO2 release with formation of the starting hydrogen oxalate salt or a new halide free bio-based ionic liquid [iBu(2)IM](AcO) which is able to adsorb reversibly the CO2 at room temperature. The protonation reactions, combined with electrolysis, could then be a promising alternative solution for storage and transport of CO2. They are indeed fast and use a thermally and air stable material produced from sustainable resources which are easily recycled by a low energy consuming process using non-expensive and corrosion-resistant equipment.
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Soumis le : vendredi 22 décembre 2017 - 18:28:27
Dernière modification le : jeudi 4 août 2022 - 17:08:42




G. de Robillard, Antoine Fournier, Hélène Cattey, Charles H. Devillers, Jacques Andrieu. Bio-based 1,3-diisobutyl imidazolium hydrogen oxalate [iBu 2 IM](HC 2 O 4 ) as CO 2 shuttle. Green Chemistry, Royal Society of Chemistry, 2017, 19 (20), pp.4912 - 4918. ⟨10.1039/C7GC02167D⟩. ⟨hal-01671997⟩



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