Differences in the electrochemical behavior of ruthenium and iridium oxide in electrocatalytic coatings of activated titanium anodes prepared by the sol-gel procedure
2010
Authors
Panić, Vladimir V.Dekanski, Aleksandar B.
Mišković-Stanković, Vesna B.
Milonjić, Slobodan K.
Nikolić, Branislav Ž.
Article
Metadata
Show full item recordAbstract
The electrochemical characteristics of Ti(0.6)Ir(0.4)O(2)/Ti and Ti(0.6)Ru(0.4)O(2)/Ti anodes prepared by the sol gel procedure from the corresponding oxide sols, obtained by force hydrolysis of the corresponding metal chlorides, were compared. The voltammetric properties in H(2)SO(4) solution indicate that Ti(0.6)Ir(0.4)O(2)/Ti has more pronounced pseudocapacitive characteristics, caused by proton-assisted, solid state surface redox transitions of the oxide. At potentials negative to 0.0 V(SCE), this electrode is of poor conductivity and activity, while the voltammetric behavior of the Ti(0.6)Ru(0.4)O(2)/Ti electrode is governed by proton injection/ejection into the oxide structure. The Ti(0.6)Ir(0.4)O(2)/Ti electrode had a higher electrocatalytical activity for oxygen evolution, while the investigated anodes were of similar activity for chlorine evolution. The potential dependence of the impedance characteristics showed that the Ti(0.6)Ru(0.4)O(2)/Ti electrode behaved like a capacito...r over a wider potential range than the Ti(0.6)Ir(0.4)O(2)/Ti electrode, with fully-developed pseudocapacitive properties at. potentials positive to 0.60 V(SCE). However, the impedance characteristics of the Ti(0.6)Ir(0.4)O(2)/Ti electrode changed with increasing potential from resistor-like to capacitor-like behavior.
Keywords:
activated titanium anodes / sol-gel procedure / electrochemical impedance spectroscopy / pseudocapacitance / ruthenium and iridium oxideSource:
Journal of the Serbian Chemical Society, 2010, 75, 10, 1413-1420Funding / projects:
- Ministry of Science and Technological Development of the Republic of Serbia [142048, 142060]
DOI: 10.2298/JSC100310078P
ISSN: 0352-5139
WoS: 000283895200010
Scopus: 2-s2.0-78449281544
Collections
Institution/Community
VinčaTY - JOUR AU - Panić, Vladimir V. AU - Dekanski, Aleksandar B. AU - Mišković-Stanković, Vesna B. AU - Milonjić, Slobodan K. AU - Nikolić, Branislav Ž. PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4138 AB - The electrochemical characteristics of Ti(0.6)Ir(0.4)O(2)/Ti and Ti(0.6)Ru(0.4)O(2)/Ti anodes prepared by the sol gel procedure from the corresponding oxide sols, obtained by force hydrolysis of the corresponding metal chlorides, were compared. The voltammetric properties in H(2)SO(4) solution indicate that Ti(0.6)Ir(0.4)O(2)/Ti has more pronounced pseudocapacitive characteristics, caused by proton-assisted, solid state surface redox transitions of the oxide. At potentials negative to 0.0 V(SCE), this electrode is of poor conductivity and activity, while the voltammetric behavior of the Ti(0.6)Ru(0.4)O(2)/Ti electrode is governed by proton injection/ejection into the oxide structure. The Ti(0.6)Ir(0.4)O(2)/Ti electrode had a higher electrocatalytical activity for oxygen evolution, while the investigated anodes were of similar activity for chlorine evolution. The potential dependence of the impedance characteristics showed that the Ti(0.6)Ru(0.4)O(2)/Ti electrode behaved like a capacitor over a wider potential range than the Ti(0.6)Ir(0.4)O(2)/Ti electrode, with fully-developed pseudocapacitive properties at. potentials positive to 0.60 V(SCE). However, the impedance characteristics of the Ti(0.6)Ir(0.4)O(2)/Ti electrode changed with increasing potential from resistor-like to capacitor-like behavior. T2 - Journal of the Serbian Chemical Society T1 - Differences in the electrochemical behavior of ruthenium and iridium oxide in electrocatalytic coatings of activated titanium anodes prepared by the sol-gel procedure VL - 75 IS - 10 SP - 1413 EP - 1420 DO - 10.2298/JSC100310078P ER -
@article{ author = "Panić, Vladimir V. and Dekanski, Aleksandar B. and Mišković-Stanković, Vesna B. and Milonjić, Slobodan K. and Nikolić, Branislav Ž.", year = "2010", abstract = "The electrochemical characteristics of Ti(0.6)Ir(0.4)O(2)/Ti and Ti(0.6)Ru(0.4)O(2)/Ti anodes prepared by the sol gel procedure from the corresponding oxide sols, obtained by force hydrolysis of the corresponding metal chlorides, were compared. The voltammetric properties in H(2)SO(4) solution indicate that Ti(0.6)Ir(0.4)O(2)/Ti has more pronounced pseudocapacitive characteristics, caused by proton-assisted, solid state surface redox transitions of the oxide. At potentials negative to 0.0 V(SCE), this electrode is of poor conductivity and activity, while the voltammetric behavior of the Ti(0.6)Ru(0.4)O(2)/Ti electrode is governed by proton injection/ejection into the oxide structure. The Ti(0.6)Ir(0.4)O(2)/Ti electrode had a higher electrocatalytical activity for oxygen evolution, while the investigated anodes were of similar activity for chlorine evolution. The potential dependence of the impedance characteristics showed that the Ti(0.6)Ru(0.4)O(2)/Ti electrode behaved like a capacitor over a wider potential range than the Ti(0.6)Ir(0.4)O(2)/Ti electrode, with fully-developed pseudocapacitive properties at. potentials positive to 0.60 V(SCE). However, the impedance characteristics of the Ti(0.6)Ir(0.4)O(2)/Ti electrode changed with increasing potential from resistor-like to capacitor-like behavior.", journal = "Journal of the Serbian Chemical Society", title = "Differences in the electrochemical behavior of ruthenium and iridium oxide in electrocatalytic coatings of activated titanium anodes prepared by the sol-gel procedure", volume = "75", number = "10", pages = "1413-1420", doi = "10.2298/JSC100310078P" }
Panić, V. V., Dekanski, A. B., Mišković-Stanković, V. B., Milonjić, S. K.,& Nikolić, B. Ž.. (2010). Differences in the electrochemical behavior of ruthenium and iridium oxide in electrocatalytic coatings of activated titanium anodes prepared by the sol-gel procedure. in Journal of the Serbian Chemical Society, 75(10), 1413-1420. https://doi.org/10.2298/JSC100310078P
Panić VV, Dekanski AB, Mišković-Stanković VB, Milonjić SK, Nikolić BŽ. Differences in the electrochemical behavior of ruthenium and iridium oxide in electrocatalytic coatings of activated titanium anodes prepared by the sol-gel procedure. in Journal of the Serbian Chemical Society. 2010;75(10):1413-1420. doi:10.2298/JSC100310078P .
Panić, Vladimir V., Dekanski, Aleksandar B., Mišković-Stanković, Vesna B., Milonjić, Slobodan K., Nikolić, Branislav Ž., "Differences in the electrochemical behavior of ruthenium and iridium oxide in electrocatalytic coatings of activated titanium anodes prepared by the sol-gel procedure" in Journal of the Serbian Chemical Society, 75, no. 10 (2010):1413-1420, https://doi.org/10.2298/JSC100310078P . .