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

被引：43

作者：

Xu, Xuezhu ^{[1
,2
]}

Zhou, Jian ^{[2
]}

Jiang, Long ^{[1
]}

Lubineau, Gilles ^{[2
]}

Chen, Ye ^{[3
]}

Wu, Xiang-Fa ^{[1
]}

Piere, Robert ^{[1
]}

机构：

[1] N Dakota State Univ, Program Mat & Nanotechnol, Dept Mech Engn, Fargo, ND 58108 USA

[2] KAUST, Phys Sci & Engn Div, COHMAS Lab, Thuwal 239556900, Saudi Arabia

[3] KAUST, Phys Sci & Engn Div, CRD Lab, Thuwal 239556900, Saudi Arabia

来源：

MATERIALS LETTERS | 2013年 / 109卷

基金：

美国国家科学基金会;

关键词：

Lignin; Polyacrylonitrile (PAN); Electrospinning; Carbon fiber; Cellulose nanofibrils (CNFs);

D O I：

10.1016/j.matlet.2013.07.082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：175 / 178

页数：4

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