Carbon Nanofibers Synthesized from Electrospun Cellulose for Advanced Materials Applications
Paper i proceeding, 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

Carbon nanofibers

alkaline regeneration

Författare

Olga Naboka

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Katia Rodriguez

Chalmers, Kemi- och bioteknik, Polymerteknologi

Farshad Toomadj

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Anke Sanz-Velasco

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Guillermo Toriz Gonzalez

Chalmers, Kemi- och bioteknik, Polymerteknologi

Per Lundgren

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Peter Enoksson

Wallenberg Wood Science Center (WWSC)

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Paul Gatenholm

Chalmers, Kemi- och bioteknik, Polymerteknologi

Wallenberg Wood Science Center (WWSC)

Materials Science Forum

0255-5476 (ISSN)

Vol. 730-732 903-908

Ämneskategorier

Polymerkemi

Materialteknik

Materialkemi

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Produktion

Materialvetenskap

Infrastruktur

Nanotekniklaboratoriet

DOI

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