Carbon Nanofibers Synthesized from Electrospun Cellulose for Advanced Material Applications

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Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 730-732)

Pages:

903-908

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Online since:

November 2012

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[1] P.Morgan, Carbon Fibers and their Composites, Taylor&Fransis, Boca Raton, 2005.

Google Scholar

[2] G. Gellerstedt, E. Sjöholm, I. Brodin,The wood-based biorefinery: a source of carbon fiber?, The Open Agriculture J. 3 (2010) 119-124.

DOI: 10.2174/1874331501004010119

Google Scholar

[3] L. Dubrovina et al., Carbon-loaded porous composites produced by matrix carbonization of Poly(vinylidene fluoride), Inorganic Materials 44 (2008) 697-704.

DOI: 10.1134/s0020168508070054

Google Scholar

[4] O. Ishida, D.-Y. Kim, S.Kuga et al., Microfibrillar carbon from native cellulose, Cellulose 11 (2004) 475-480.

DOI: 10.1023/b:cell.0000046410.31007.0b

Google Scholar

[5] Y. Chen, X.-p. Xiong, G. Yang, Characterization of regenerated cellulose membranes hydrolyzed from cellulose acetate, Chinese J. of Polymer Sci. 20 (2002) 369-375.

Google Scholar

[6] I.S. Kim, J.P. Kim, S.Y. Kwak et al., Novel regenerated cellulosic material prepared by an environmentally-friendly process, Polymer 47 (2006) 1333-1339.

DOI: 10.1016/j.polymer.2005.12.070

Google Scholar

[7] M. Zimmerley et al. Molecular orientation in dry and hydrated cellulose fibers: a coherent anti-stokes raman scattering microscopy study, J. Phys. Chem. B 114 (2010) 10200-10208.

DOI: 10.1021/jp103216j

Google Scholar

[8] V.A. Bakunov, G.A. Budnitskii, L.F. Maiboroda Hollow cellulose acetate fibers for hemodialysis, Khimicheskie Volokna, No. 6 (1979) 483-485

DOI: 10.1007/bf00547310

Google Scholar

[9] K Rodriguez, S Renneckar, P. Gatenholm, Biomimetic calcium phosphate crystal mineralization on electrospun cellulose-based scaffolds, ACS Appl. Mater. Interfaces 3 (2011) 681-689.

DOI: 10.1021/am100972r

Google Scholar

[10] D. Klemm, B. Heublein, H.-P. Fink, A. Bohn, Cellulose: fascinating biopolymer and sustainable raw material, Angew. Chem. Int. Ed. 44 (2005) 3358-3393.

DOI: 10.1002/anie.200460587

Google Scholar

[11] Y. Hishiyama, A. Yoshida, Y. Kaburagi, Resistivity, Hall coefficient, magnetoresistance, and microtexture of cellulose carbon films, Carbon, 31 (1993), 1265-1272.

DOI: 10.1016/0008-6223(93)90085-o

Google Scholar

[12] Y.-R. Rhim et al. Changes in electrical and microstructural properties of microcristalline cellulose as function of carbonization temperature, Carbon, 48 (2010), 1012-1024.

DOI: 10.1016/j.carbon.2009.11.020

Google Scholar