Extruded cellulose/ionic liquid carbon scaffolds

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Authors

Oosthuizen, Hester
Du Toit, Elizabeth Louisa
Focke, Walter Wilhelm

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics

Abstract

Monolithic carbon scaffolds were obtained by pyrolysis of regenerated cellulose. First, microcrystalline cellulose was compounded, at a 1:1 mass ratio, with 1-ethyl-3-methylimidazolium acetate, choline chloride or a mixture of the two ionic liquids. Test bars were extrusion-molded and the ionic liquid removed by leaching with water. The porous cellulose bars were carbonized at 800 °C in a nitrogen atmosphere. The Raman ID/IG peak intensity ratios ranged from 0.74 to unity confirming the formation of amorphous carbon. Scanning electron microscopy revealed a highly porous structure consisting of both micro- and nanopores.

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Keywords

Cellulose, Ionic liquid, Monolithic carbon scaffolds, Carbon

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Citation

Oosthuizen, H., Du Toit, E. & Focke, W. Extruded cellulose/ionic liquid carbon scaffolds. AIP Conference Proceedings, vol. 2289, art. 020042, pp. 1-5 (2020); https://doi.org/10.1063/5.0028324.