Carbon Nanofibers Synthesized from Electrospun Cellulose for Advanced Materials Applications
Paper in proceedings, 2013

Carbon nanofibrous sheets (conductivity 1.9 to 35.5 S×cm-1, water contact angle up to 137°) consisting of amorphous fibers with diameter of 20 - 150 nm (C:O atomic ratio 25.4 - 86.0) were synthesized by carbonization of cellulose regenerated from electrospun cellulose acetate mats with three methods of alkaline deacetylation. It was established that C:O atomic ratio, conductivity and hydrophobicity depended on the regeneration method and on the temperature of carbonization. The highest flexibility, lowest conductivity and lowest water contact angle was observed for carbon synthesized from cellulose regenerated with NaOH in ethanol (0.05 mol/l) for 24 hours at room temperature. The highest conductivity, highest water contact angle and lowest flexibility was observed for carbon synthesized from cellulose regenerated with water solution of NaOH/NaCl (3.75 M NaOH, 2.1 M NaCl) during 15 minutes at 65°C.

electrospun cellulose

alkaline regeneration

Carbon nanofibers

Author

Olga Naboka

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Katia Rodriguez

Chalmers, Chemical and Biological Engineering, Polymer Technology

Farshad Toomadj

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Anke Sanz-Velasco

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Guillermo Toriz Gonzalez

Chalmers, Chemical and Biological Engineering, Polymer Technology

Per Lundgren

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Peter Enoksson

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Wallenberg Wood Science Center (WWSC)

Paul Gatenholm

Wallenberg Wood Science Center (WWSC)

Chalmers, Chemical and Biological Engineering, Polymer Technology

Materials Science Forum

0255-5476 (ISSN)

Vol. 730-732 903-908

Subject Categories

Polymer Chemistry

Materials Engineering

Materials Chemistry

Areas of Advance

Nanoscience and Nanotechnology

Transport

Production

Materials Science

Infrastructure

Nanofabrication Laboratory

DOI

10.4028/www.scientific.net/MSF.730-732.903

More information

Latest update

8/27/2018