Preparation and selected properties of composites of the C60-Pd conducting polymer and soluble single-wall carbon nanotubes

Piotr Pieta 1Emilia Grodzka 2Krzysztof Winkler 2Francis D'Souza 3Wlodzimierz Kutner 1

1. Polish Academy of Sciences, Institute of Physical Chemistry, Kasprzaka 44/52, Warszawa 01-224, Poland
2. University of Białystok, Institute of Chemistry, Hurtowa 1, Białystok 15-399, Poland
3. Wichita State University, Department of Chemistry, 1845, Fairmount, Wichita, KS 67260-0051, United States


A composite thin film of the novel electroactive fullerene-palladium (C60-Pd) polymer and single-wall carbon nanotubes, which were non-covalently modified by 1-pyrenebutiric acid (pyr-SWCNTs), was electrochemically prepared under multi-scan cyclic voltammetry (CV) conditions and its conductive, capacitance and visco-elasitic properties investigated. The film was prepared by using a mixed C60, pyr-SWCNTs, and palladium acetate solution of either mixed acetonitrile : toluene (1 : 4, v : v) or 1,2-dichlorobenzene solvent. A tetrabutylammonium salt, like 0.1 M (TBA)ClO4 or (TBA)PF6, was used as a supporting electrolyte. Mass changes of the deposited composite film were measured in situ by piezoelectric microgravimetry with the use of an electrochemical quartz crystal microbalance. The quartz crystal resonators with their electrodes coated by either the C60-Pd or C60-Pd/pyr-SWCNTs composite film were transferred to a blank supporting electrolyte solution, i.e., 0.1 M (TBA)ClO4 or (TBA)PF6 in acetonitrile, and current, resonance frequency changes, and dynamic resistance changes vs. scanned potential were simultaneously recorded in different potential ranges. Each polymer revealed electrochemical activity at potentials more negative than ca. -0.7 V. Both cathodic and anodic currents for the C60-Pd/pyr-SWCNTs films were almost twice as high as those for the C60-Pd films. The presence of pyr-SWCNTs in the polymer causes an increase of the electrode capacitance, as manifested by increased CV current. For the potential range 0 to -1.2 V changes of both resonance frequency and dynamic resistance are almost the same for the C60-Pd and C60-Pd/pyr-SWCNTs films. Distinct differences are seen, however, for potentials exceeding -1.2 V. That is, frequency rapidly decreases when the potential reaches the -1.2 V value in the negative excursion. However, this decrease is three times smaller for the C60-Pd/pyr-SWCNTs film than that for the C60-Pd film. This decrease of frequency is accompanied by the increase of dynamic resistance. Changes of dynamic resistance for the C60-Pd film are three times larger than those for the C60-Pd/pyr-SWCNTs film. This behavior suggests that for potentials more negative than -1.2 V the C60-Pd/pyr-SWCNTs film is more rigid than the C60-Pd film. Moreover, redox conductivity of the C60-Pd films doped with pyr-SWCNTs is higher than that of the undoped C60-Pd films. The redox conductivity values, determined from the highest slopes of the rising portions of cathodic CV curves in the range ca. -0.6 to -0.8 V, are 0.92 and 1.48 mS for the film of the C60-Pd and the C60-Pd/pyr-SWCNTs composite, respectively. In the Raman spectrum for the C60-Pd/pyr-SWCNTs film there are peaks characteristic both for pyr-SWCNTs (radial breathing modes, RBM) and C60-Pd indicating that, indeed, pyr-SWCNTs are incorporated into the film during electropolymerization of C60-Pd. Moreover, the RBM peaks for the pyr-SWCNTs film are deconvoluted in the spectrum of the composite due to different extent of aggregation of pyr-SWCNTs.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: must be provided.


Related papers
  1. Piezomicrogravimetric chemosensor for determination of selected alkaloids with dedicated porphyrin polymer film as recognition unit
  2. Molecularly imprinted polymer (MIP) chemosensors for surface plasmon resonance (SPR) and differerntial pulse voltammetry (DPV) determination of melamine
  3. Electrochemically synthesized molecularly imprinted polymer for determination adenosine 5'-triphosphate (ATP)
  4. Molecularly imprinted polymer based electrochemical sensors for flow injection determination of adrenaline
  5. Composites of electroactive fullerene-based polymer and carbon nanomaterials – good materials for supercapacitors
  6. Supramolecular Solar Cells
  7. Inherently chiral conducting polymer electrodes 
  8. FIA detection of nicotine and cotinine using piezomicrogravimetric sensors with zinc porphyrin polymer films as their recognition elements
  9. Structure-reactivity effects in electrocatalytic dioxygen reduction in aqueous solutions at electrodes coated by electrochemically synthesized molecularly imprinted polymers of a cobalt porphyrin diphenylamine derivative
  10. A melamine acoustic chemosensor based on molecularly imprinted polymer film
  11. An effective multipurpose building block for 3D electropolymerizations: 2,2’-bis(2,2’-bithiophene-5-yl)-3,3’-bi-1-benzothiophene
  12. Bio-inspired Supramolecular Nano-Self Assemblies for Light Energy Conversion
  13. Carbon nano-onion composites
  14. Development of a histamine acoustic sensor using film of molecularly imprinted polymer prepared by electrochemical co-polymerisation of bis(bithiophene) derivatives
  15. Electrochemical polymerisation and electrocatalytic properties of structured selected aminophenyl derivatives of some metalloporphyrins
  16. Electrochemical oxidation of [IrX2(CO)2]¯ (X = Cl, Br, and I) complexes
  17. Polymer film-coated high electron mobility transistors, based on GaN heterostructures, as sensors for some benzene derivatives
  18. Mimicking Photosynthesis by Supramolecular Donor-Acceptor Nanostructures: Design to Devices
  19. Mass Spectrometric and in Situ ESR Vis-NIR Spectroelectrochemical Investigations of the Mechanism of the C60 Electropolymerization in the Presence of Dioxygen in Aprotic Solvents
  20. Composition, structure, surface topography, and electrochemical properties of electrophoretically deposited fullerene films
  21. Some electrochemical properties of laccase immobilised on the Au, IrOx, or C60-Pd polymer electrode supports
  22. Formation and properties of donor-acceptor dyads of Zn porphyrins and C60-imidazole adduct in the Langmuir and Langmuir-Blodgett Films
  23. Electrochemical quartz crystal microbalance study of the avidin and albumin adsorption under flow injection analysis conditions
  24. Electron transfer applications of nanostructured supramolecules
  25. Electrochemically formed fullerene-based polymers
  26. Activation of voltammetric response of two-component film of functionalized fullerenes bearing a redox probe and palladium
  27. Porphyrin and Fullerene Modified Electrodes for Electrochemical Catalytic and Sensor Applications
  28. Formation, Properties and Potential Applications of Fullerene-based Solid Films
  29. Piezoelectric Microgravimetry for Determination of Some Biologically Important Compounds

Presentation: Poster at SMCBS'2007 International Workshop, by Piotr Pieta
See On-line Journal of SMCBS'2007 International Workshop

Submitted: 2007-10-17 15:58
Revised:   2009-06-07 00:48
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine