Research output: Contribution to journal › Article
Electrochemical Properties of Composite Films Based on Poly-3,4-Ethylenedioxythiophene with Inclusions of Metallic Palladium. / Eliseeva, S. N.; Malev, V. V.; Kondrat’ev, V. V.
In: Russian Journal of Electrochemistry, No. 9, 2009, p. 1045-1051.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Electrochemical Properties of Composite Films Based on Poly-3,4-Ethylenedioxythiophene with Inclusions of Metallic Palladium
AU - Eliseeva, S. N.
AU - Malev, V. V.
AU - Kondrat’ev, V. V.
PY - 2009
Y1 - 2009
N2 - The electrochemical behavior of composite Pd–PEDOT films is studied. These films are obtained by chemical deposition of Pd particles in the polymeric matrix of PEDOT (poly-3,4-ethylenedioxythiophene). Characteristics of the films are determined by means of cyclic voltammetry, faradaic impedance, microgravimetry, and energy-dispersive x-ray fluorescence analysis. Impedance spectra of composite Pd–PEDOT films, compared to the original PEDOT film, reveal a new response at potentials of –0.3 and –0.4 V in the form of a distinct semicircle, which results from processes in the electrochemical sorption–desorption of hydrogen. Weight gain during the chemical deposition of palladium in the polymer structure is estimated by mircrogravimetry. It is shown that the mass of palladium loaded in the film depends on the time of synthesis and the initial concentration of palladium ions in solution. The size of the actual surface and the average radius of dispersed palladium particles in the film are also estimated.
AB - The electrochemical behavior of composite Pd–PEDOT films is studied. These films are obtained by chemical deposition of Pd particles in the polymeric matrix of PEDOT (poly-3,4-ethylenedioxythiophene). Characteristics of the films are determined by means of cyclic voltammetry, faradaic impedance, microgravimetry, and energy-dispersive x-ray fluorescence analysis. Impedance spectra of composite Pd–PEDOT films, compared to the original PEDOT film, reveal a new response at potentials of –0.3 and –0.4 V in the form of a distinct semicircle, which results from processes in the electrochemical sorption–desorption of hydrogen. Weight gain during the chemical deposition of palladium in the polymer structure is estimated by mircrogravimetry. It is shown that the mass of palladium loaded in the film depends on the time of synthesis and the initial concentration of palladium ions in solution. The size of the actual surface and the average radius of dispersed palladium particles in the film are also estimated.
KW - composite materials
KW - poly-3
KW - 4-ethylenedioxythiophene
KW - palladium particles
KW - conducting polymers
KW - cyclic voltammetry
KW - quartz microbalance
KW - faradiac impedance spectroscopy
M3 - статья
SP - 1045
EP - 1051
JO - Russian Journal of Electrochemistry
JF - Russian Journal of Electrochemistry
SN - 1023-1935
IS - 9
ER -
ID: 5185510