Porous core-shell carbon fibers derived from lignin and cellulose nanofibrils

Xuezhu Xu, Jian Zhou, Long Jiang, Gilles Lubineau, Ye Chen, Xiangfa Wu, Robert Piere

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

This letter reports a method to produce lignin and cellulose nanofibrils (CNFs) based porous core-shell carbon fibers via co-electrospinning followed by controlled carbonization. Lignin formed the shell of the fiber while CNF network formed the porous core. Polyacrylonitrile (PAN) was added to the lignin solution to increase its electrospinability. CNFs were surface acetylated and dispersed in silicon oil to obtain a homogenous dispersion for electrospinning the porous core. Hollow lignin fibers were also electrospun using glycerin as the core material. FT-IR measurements confirmed the CNF acetylation. SEM micrographs showed the core-shell and hollow fiber nanostructures before and after carbonization. The novel carbon fibers synthesized in this study exhibited increased surface area and porosity that are promising for many advanced applications. © 2013 Elsevier B.V.
Original languageEnglish (US)
Pages (from-to)175-178
Number of pages4
JournalMaterials Letters
Volume109
DOIs
StatePublished - Oct 2013

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Mechanical Engineering
  • Condensed Matter Physics

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