Carbon nanofibres produced from electrospun cellulose nanofibres

被引：134

作者：

Deng, Libo ^{[1
]}

Young, Robert J. ^{[1
]}

Kinloch, Ian A. ^{[1
]}

Zhu, Yanqiu ^{[2
]}

Eichhorn, Stephen J. ^{[3
]}

机构：

[1] Univ Manchester, Sch Mat, Ctr Mat Sci, Manchester M13 9PL, Lancs, England

[2] Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, Devon, England

[3] Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QL, Devon, England

来源：

CARBON | 2013年 / 58卷

基金：

英国工程与自然科学研究理事会;

关键词：

RAMAN-SPECTRUM; FIBERS; CARBONIZATION;

D O I：

10.1016/j.carbon.2013.02.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cellulose nanofibres have been fabricated by electrospinning of a cellulose acetate solution followed by deacetylation. The cellulose nanofibres were then carbonized using temperatures in the range 800-2200 degrees C and the resulting carbon nanofibres (CNFs) were characterized using transmission electron microscopy, X-ray diffraction and Raman spectroscopy. A graphitic structure was observed for CNFs treated at a relatively low temperature of 1500 degrees C, with no obvious skin-core heterogeneity observed for fibres treated up to 2200 degrees C, suggesting a possible advantage of using nano-scale precursors. The effective Young's modulus of the CNFs was assessed using an in situ Raman spectroscopic technique following the shift in the position of the G' (2D) band located at similar to 2660 cm(-1) and relating this to a calibration established for a range of other carbon fibres. Using this approach the moduli of the CNFs were found to be similar to 60 and similar to 100 GPa for samples carbonized at 1500 and 2200 degrees C, respectively. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：66 / 75

页数：10

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