Porous core-shell carbon fibers derived from lignin and cellulose nanofibrils
Type
ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Science Program
Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2013-10Permanent link to this record
http://hdl.handle.net/10754/562998
Metadata
Show full item recordAbstract
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.Citation
Xu, X., Zhou, J., Jiang, L., Lubineau, G., Chen, Y., Wu, X.-F., & Piere, R. (2013). Porous core-shell carbon fibers derived from lignin and cellulose nanofibrils. Materials Letters, 109, 175–178. doi:10.1016/j.matlet.2013.07.082Sponsors
Financial supports from ND NASA EPSCoR and KAUST Baseline are greatly appreciated.Publisher
Elsevier BVJournal
Materials Lettersae974a485f413a2113503eed53cd6c53
10.1016/j.matlet.2013.07.082