Volume 13, Issue 18 p. 4134-4141
Article

Preparation and Characterization of Carbon Nano-Onion/PEDOT:PSS Composites

Dr. Marta E. Plonska-Brzezinska

Corresponding Author

Dr. Marta E. Plonska-Brzezinska

Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok (Poland)

Marta E. Plonska-Brzezinska, Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok (Poland)

Luis Echegoyen, Department of Chemistry, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968 (USA)

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Dr. Mikołaj Lewandowski

Dr. Mikołaj Lewandowski

Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznan (Poland)

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Dr. Małgorzata Błaszyk

Dr. Małgorzata Błaszyk

Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznan (Poland)

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Dr. Agustin Molina-Ontoria

Dr. Agustin Molina-Ontoria

Department of Chemistry, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968 (USA)

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Prof. Dr. Tadeusz Luciński

Prof. Dr. Tadeusz Luciński

Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznan (Poland)

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Prof. Dr. Luis Echegoyen

Corresponding Author

Prof. Dr. Luis Echegoyen

Department of Chemistry, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968 (USA)

Marta E. Plonska-Brzezinska, Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok (Poland)

Luis Echegoyen, Department of Chemistry, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968 (USA)

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First published: 21 November 2012
Citations: 68

Graphical Abstract

Know your onions: Composites of unmodified or oxidized carbon nano-onions (CNOs/ox-CNOs) with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) are prepared with different compositions. The composites are characterized by XPS, SEM, TEM, DSC, and cyclic voltammetry (see figure). Doping with CNOs increases the capacitance of the CNO/PEDOT:PSS and ox-CNO/PEDOT:PSS composites.

Abstract

Composites of unmodified or oxidized carbon nano-onions (CNOs/ox-CNOs) with poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) are prepared with different compositions. By varying the ratio of PEDOT:PSS relative to CNOs, CNO/PEDOT:PSS composites with various PEDOT:PSS loadings are obtained and the corresponding film properties are studied as a function of the polymer. X-ray photoelectron spectroscopy characterization is performed for pristine and ox-CNO samples. The composites are characterized by scanning and transmission electron microscopy and differential scanning calorimetry studies. The electrochemical properties of the nanocomposites are determined and compared. Doping the composites with carbon nanostructures significantly increases their mechanical and electrochemical stabilities. A comparison of the results shows that CNOs dispersed in the polymer matrices increase the capacitance of the CNO/PEDOT:PSS and ox-CNO/PEDOT:PSS composites.