Extruded cellulose/ionic liquid carbon scaffolds
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Date
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.
Description
Keywords
Cellulose, Ionic liquid, Monolithic carbon scaffolds, Carbon
Sustainable Development Goals
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.