Electrocatalytic properties of
RuO
2
/Ti
anode with different coating masses, which are prepared by
the alkoxide sol–gel procedure, are investigated in chlorine and oxygen evolution reactions by polarization
measurements and electrochemical impedance spectroscopy in
H
2
SO
4
and NaCl electrolytes. According to
polarization measurements, the activity of anodes at overpotentials below 100 mV is independent of coating
mass. However, impedance measurements above 100 mV reveal changes in the activity of anodes in chlorine
evolution reaction for different coating masses. The diffusion limitations related to the evolved chlorine are registered
in low-frequency domain at 1.10 V (SCE), diminishing with the increase in potential to the 1.15 V
(SCE). The observed impedance behavior is discussed with respect to the activity model for activated titanium
anodes in chlorine evolution reaction involving formation of gas channels within porous coating structure. Gas
channels enhance t...he mass transfer rate similarly to the forced convection, which also increases the activity of
anode. This is more pronounced for the anode of greater coating mass due to its more compact surface structure.
The more compact structure appears to be beneficial for gas channels formation.
TY - JOUR
AU - Panić, Vladimir
AU - Dekanski, Aleksandar
AU - Milonjić, Slobodan K.
AU - Mišković-Stanković, Vesna
AU - Nikolić, B. Ž.
PY - 2006
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3413
AB - Electrocatalytic properties of
RuO
2
/Ti
anode with different coating masses, which are prepared by
the alkoxide sol–gel procedure, are investigated in chlorine and oxygen evolution reactions by polarization
measurements and electrochemical impedance spectroscopy in
H
2
SO
4
and NaCl electrolytes. According to
polarization measurements, the activity of anodes at overpotentials below 100 mV is independent of coating
mass. However, impedance measurements above 100 mV reveal changes in the activity of anodes in chlorine
evolution reaction for different coating masses. The diffusion limitations related to the evolved chlorine are registered
in low-frequency domain at 1.10 V (SCE), diminishing with the increase in potential to the 1.15 V
(SCE). The observed impedance behavior is discussed with respect to the activity model for activated titanium
anodes in chlorine evolution reaction involving formation of gas channels within porous coating structure. Gas
channels enhance the mass transfer rate similarly to the forced convection, which also increases the activity of
anode. This is more pronounced for the anode of greater coating mass due to its more compact surface structure.
The more compact structure appears to be beneficial for gas channels formation.
PB - Springer
T2 - Russian Journal of Electrochemistry
T1 - Electrocatalytic Activity of Sol–Gel-Prepared RuO 2 /Ti Anode in Chlorine and Oxygen Evolution Reactions
VL - 42
IS - 10
SP - 1055
EP - 1060
DO - 10.1134/S1023193506100107
ER -
@article{
author = "Panić, Vladimir and Dekanski, Aleksandar and Milonjić, Slobodan K. and Mišković-Stanković, Vesna and Nikolić, B. Ž.",
year = "2006",
abstract = "Electrocatalytic properties of
RuO
2
/Ti
anode with different coating masses, which are prepared by
the alkoxide sol–gel procedure, are investigated in chlorine and oxygen evolution reactions by polarization
measurements and electrochemical impedance spectroscopy in
H
2
SO
4
and NaCl electrolytes. According to
polarization measurements, the activity of anodes at overpotentials below 100 mV is independent of coating
mass. However, impedance measurements above 100 mV reveal changes in the activity of anodes in chlorine
evolution reaction for different coating masses. The diffusion limitations related to the evolved chlorine are registered
in low-frequency domain at 1.10 V (SCE), diminishing with the increase in potential to the 1.15 V
(SCE). The observed impedance behavior is discussed with respect to the activity model for activated titanium
anodes in chlorine evolution reaction involving formation of gas channels within porous coating structure. Gas
channels enhance the mass transfer rate similarly to the forced convection, which also increases the activity of
anode. This is more pronounced for the anode of greater coating mass due to its more compact surface structure.
The more compact structure appears to be beneficial for gas channels formation.",
publisher = "Springer",
journal = "Russian Journal of Electrochemistry",
title = "Electrocatalytic Activity of Sol–Gel-Prepared RuO 2 /Ti Anode in Chlorine and Oxygen Evolution Reactions",
volume = "42",
number = "10",
pages = "1055-1060",
doi = "10.1134/S1023193506100107"
}
Panić, V., Dekanski, A., Milonjić, S. K., Mišković-Stanković, V.,& Nikolić, B. Ž.. (2006). Electrocatalytic Activity of Sol–Gel-Prepared RuO 2 /Ti Anode in Chlorine and Oxygen Evolution Reactions. in Russian Journal of Electrochemistry
Springer., 42(10), 1055-1060.
https://doi.org/10.1134/S1023193506100107
Panić V, Dekanski A, Milonjić SK, Mišković-Stanković V, Nikolić BŽ. Electrocatalytic Activity of Sol–Gel-Prepared RuO 2 /Ti Anode in Chlorine and Oxygen Evolution Reactions. in Russian Journal of Electrochemistry. 2006;42(10):1055-1060.
doi:10.1134/S1023193506100107 .
Panić, Vladimir, Dekanski, Aleksandar, Milonjić, Slobodan K., Mišković-Stanković, Vesna, Nikolić, B. Ž., "Electrocatalytic Activity of Sol–Gel-Prepared RuO 2 /Ti Anode in Chlorine and Oxygen Evolution Reactions" in Russian Journal of Electrochemistry, 42, no. 10 (2006):1055-1060,
https://doi.org/10.1134/S1023193506100107 . .
