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Ros TG, van Dillen AJ, Geus JW, et al. Surface oxidation of carbon nanofibres. Chemistry. 2002;8(5):1151-62doi: 10.1002/1521-3765(20020301)8:5<1151::aid-chem1151>3.0.co;2-#.
Ros, T. G., van Dillen, A. J., Geus, J. W., & Koningsberger, D. C. (2002). Surface oxidation of carbon nanofibres. Chemistry (Weinheim an der Bergstrasse, Germany), 8(5), 1151-62. https://doi.org/10.1002/1521-3765(20020301)8:5<1151::aid-chem1151>3.0.co;2-#
Ros, Tijmen G, et al. "Surface oxidation of carbon nanofibres." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 8,5 (2002): 1151-62. doi: https://doi.org/10.1002/1521-3765(20020301)8:5<1151::aid-chem1151>3.0.co;2-#
Ros TG, van Dillen AJ, Geus JW, Koningsberger DC. Surface oxidation of carbon nanofibres. Chemistry. 2002 Mar 01;8(5):1151-62. doi: 10.1002/1521-3765(20020301)8:5<1151::aid-chem1151>3.0.co;2-#. PMID: 11891903.
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Chemistry. 2002 Mar 01;8(5):1151-62. doi: 10.1002/1521-3765(20020301)8:5<1151::aid-chem1151>3.0.co;2-#.

Surface oxidation of carbon nanofibres.

Chemistry (Weinheim an der Bergstrasse, Germany)

Tijmen G Ros, Adrianus J van Dillen, John W Geus, Diederik C Koningsberger

Affiliations

  1. Department in Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, P.O. Box 80083, 3508 TB Utrecht, The Netherlands.

PMID: 11891903 DOI: 10.1002/1521-3765(20020301)8:5<1151::aid-chem1151>3.0.co;2-#

Abstract

Carbon nanofibres of the fishbone and parallel types were surface-oxidised by several methods. The untreated and oxidised fibres were studied with infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy (XPS). Oxidation in a mixture of concentrated nitric and sulfuric acids proved to be the most effective method for creating oxygen-containing surface groups. This treatment results not only in the formation of carboxy and carboxyic anhydride groups, but also in the generation of ether-type oxygen groups between graphitic layers that are puckered at their edges. The IR spectroscopic data clearly show that the formation of oxygen-containing surface groups occurs at defect sites on the carbon nanofibres and that oxidation proceeds via carbonyl groups and other oxides to carboxy and carboxyic anhydride groups. Owing to the presence of defects, the two types of fibre have similar surface reactivities. With parallel nanofibres, in contrast to fishbone fibres, the macroscopic structure was severely affected by treatment with HNO(3)/H(2)SO(4). The HNO(3)/H(2)SO(4)-treated fibres are highly wettable by water.

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