Lignin-based multiwall carbon nanotubes

Wolfgang Gindl-Altmutter*, Janea Köhnke, Christoph Unterweger, Notburga Gierlinger, Jozef Keckes, Jakub Zalesak, Orlando J. Rojas

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

Carbon particles were produced by carbonization of perfectly spherical, sub-micron beads obtained from Kraft lignin. While the bulk of the particles consisted of carbon with only moderate structural order, high-resolution transmission electron microscopy revealed the presence of highly ordered multilayered carbon structures adhering to the surface of the carbon spheres. Besides irregularly shaped multiwall carbon, well-defined multiwall carbon nanotubes were identified. Energy dispersive x-ray analysis hints at a catalytic action of metallic impurities present in lignin in the synthesis of these lignin-based carbon nanostructures. Lignin-based multiwall carbon nanotubes are considered of high interest with regard to providing bio-based alternatives for fossil-based high-performance materials.

Original languageEnglish
Pages (from-to)175-179
Number of pages5
JournalComposites Part A: Applied Science and Manufacturing
Volume121
DOIs
Publication statusPublished - 1 Jun 2019
MoE publication typeA1 Journal article-refereed

Keywords

  • A. Carbon nanotubes and nanofibers
  • Lignin

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