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Papers by Csaba Visy
Electrochimica Acta, Feb 1, 2000
ABSTRACT Registration of the conductance after the end of the electrochemical polymerisation of 3... more ABSTRACT Registration of the conductance after the end of the electrochemical polymerisation of 3-methylthiophene (PMT) indicated a large conductance increase at open circuit. Further in situ conductance measurements with the polymeric film in Bu4NPF6/acetonitrile base solution provided direct evidence for that — after the oxidation of the film — the final achievement, the accomplishment of the state of high conduction is not necessarily coupled with current flow any more. The non-faradaic step which may explain this observation is described as a chemical reorganisation within the film, which involves the transformation of solvated polymer segments to a more conjugated, non-solvated form.
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Electrochimica Acta, 2005
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Electrochimica Acta, Jul 1, 2000
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Journal of Physical Chemistry B, Jan 10, 2003
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Electrochimica Acta, Dec 1, 2007
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Journal of Solid State Electrochemistry, Jun 7, 2001
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Electrochimica Acta, Apr 1, 2011
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Electrochimica Acta, Mar 1, 2014
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Journal of Physical Chemistry C, Oct 26, 2010
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Synthetic Metals, May 1, 2013
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Journal of Solid State Electrochemistry, Mar 24, 2009
In this study vitamin B12 covered magnetite nanoparticles have been incorporated into a conductin... more In this study vitamin B12 covered magnetite nanoparticles have been incorporated into a conducting polypyrrole. This polymer was electrochemically synthesized in the presence of the B12-coated magnetite. The adsorption of B12 was demonstrated by the decrease in absorbance of the vitamin in the supernatant liquid after B12 has been in contact with magnetite sol overnight. The composition of the layers
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Journal of Solid State Electrochemistry, Jul 27, 2014
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Journal of Solid State Electrochemistry, Jun 21, 2016
AbstractIn this study, we demonstrate that by directly employing single-walled carbon nanotube ar... more AbstractIn this study, we demonstrate that by directly employing single-walled carbon nanotube arrays (SWCNT-arrays)—grown on conductive substrates—as working electrodes, selective and uniform electrodeposition of a conducting polymer, namely poly(3-hexylthiophene), can be achieved on the surface of the nanotubes. The overall kinetic pattern of the electrodeposition was studied by separating the deposition charge from the one related to the redox transformation of the polymer film deposited during the precedent cycles. Both the structure and the electrochemical properties of the hybrid materials were studied as a function of the electrodeposition cycles, thus the amount of the formed polymer. The hybrids were characterized by electron microscopic (SEM, TEM) and vibrational spectroscopic (Raman spectroscopy) means. The obtained results were compared and contrasted with those gathered on macroscopic-sized multi-walled carbon nanotube array-based composites in our group recently. Overall, we conclude that electrochemical polymerization is an attractive tool to synthesize conducting polymer/SWCNT hybrid materials with controlled composition and morphology. Graphical abstractHighy organized nanostructures of conduction polymer/SWCNT array hybrids were obtained via electrodeposition
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Journal of Solid State Electrochemistry, Oct 16, 2012
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Electrochemistry Communications, Jul 1, 2010
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Journal of Electroanalytical Chemistry, 1998
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Electrochimica Acta, Apr 1, 2008
Poly(3-octyl-thiophene) (POT) and polypyrrole (PPy) iron oxalate composites were synthesized thro... more Poly(3-octyl-thiophene) (POT) and polypyrrole (PPy) iron oxalate composites were synthesized through a post-polymerization oxidative treatment. The composite of the latter has been prepared also by electrochemical polymerization. The samples have been characterized by X-ray diffraction (XRD), impedance spectroscopy, scanning electron microscope (SEM) combined with energy dispersive X-ray (EDX) spectroscopy, Mössbauer spectroscopy, cyclic voltammetry and electrochemical quartz crystal microbalance (EQCM). In
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Meeting abstracts, 2011
not Available.
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Electrochemistry Communications, 2012
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Journal of Solid State Electrochemistry, Apr 6, 2005
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Electrochimica Acta, Feb 1, 2000
ABSTRACT Registration of the conductance after the end of the electrochemical polymerisation of 3... more ABSTRACT Registration of the conductance after the end of the electrochemical polymerisation of 3-methylthiophene (PMT) indicated a large conductance increase at open circuit. Further in situ conductance measurements with the polymeric film in Bu4NPF6/acetonitrile base solution provided direct evidence for that — after the oxidation of the film — the final achievement, the accomplishment of the state of high conduction is not necessarily coupled with current flow any more. The non-faradaic step which may explain this observation is described as a chemical reorganisation within the film, which involves the transformation of solvated polymer segments to a more conjugated, non-solvated form.
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Electrochimica Acta, 2005
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Electrochimica Acta, Jul 1, 2000
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Journal of Physical Chemistry B, Jan 10, 2003
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Electrochimica Acta, Dec 1, 2007
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Journal of Solid State Electrochemistry, Jun 7, 2001
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Electrochimica Acta, Apr 1, 2011
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Electrochimica Acta, Mar 1, 2014
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Journal of Physical Chemistry C, Oct 26, 2010
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Synthetic Metals, May 1, 2013
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Journal of Solid State Electrochemistry, Mar 24, 2009
In this study vitamin B12 covered magnetite nanoparticles have been incorporated into a conductin... more In this study vitamin B12 covered magnetite nanoparticles have been incorporated into a conducting polypyrrole. This polymer was electrochemically synthesized in the presence of the B12-coated magnetite. The adsorption of B12 was demonstrated by the decrease in absorbance of the vitamin in the supernatant liquid after B12 has been in contact with magnetite sol overnight. The composition of the layers
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Journal of Solid State Electrochemistry, Jul 27, 2014
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Journal of Solid State Electrochemistry, Jun 21, 2016
AbstractIn this study, we demonstrate that by directly employing single-walled carbon nanotube ar... more AbstractIn this study, we demonstrate that by directly employing single-walled carbon nanotube arrays (SWCNT-arrays)—grown on conductive substrates—as working electrodes, selective and uniform electrodeposition of a conducting polymer, namely poly(3-hexylthiophene), can be achieved on the surface of the nanotubes. The overall kinetic pattern of the electrodeposition was studied by separating the deposition charge from the one related to the redox transformation of the polymer film deposited during the precedent cycles. Both the structure and the electrochemical properties of the hybrid materials were studied as a function of the electrodeposition cycles, thus the amount of the formed polymer. The hybrids were characterized by electron microscopic (SEM, TEM) and vibrational spectroscopic (Raman spectroscopy) means. The obtained results were compared and contrasted with those gathered on macroscopic-sized multi-walled carbon nanotube array-based composites in our group recently. Overall, we conclude that electrochemical polymerization is an attractive tool to synthesize conducting polymer/SWCNT hybrid materials with controlled composition and morphology. Graphical abstractHighy organized nanostructures of conduction polymer/SWCNT array hybrids were obtained via electrodeposition
Bookmarks Related papers MentionsView impact
Journal of Solid State Electrochemistry, Oct 16, 2012
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Electrochemistry Communications, Jul 1, 2010
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Journal of Electroanalytical Chemistry, 1998
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Electrochimica Acta, Apr 1, 2008
Poly(3-octyl-thiophene) (POT) and polypyrrole (PPy) iron oxalate composites were synthesized thro... more Poly(3-octyl-thiophene) (POT) and polypyrrole (PPy) iron oxalate composites were synthesized through a post-polymerization oxidative treatment. The composite of the latter has been prepared also by electrochemical polymerization. The samples have been characterized by X-ray diffraction (XRD), impedance spectroscopy, scanning electron microscope (SEM) combined with energy dispersive X-ray (EDX) spectroscopy, Mössbauer spectroscopy, cyclic voltammetry and electrochemical quartz crystal microbalance (EQCM). In
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Meeting abstracts, 2011
not Available.
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Electrochemistry Communications, 2012
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Journal of Solid State Electrochemistry, Apr 6, 2005
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