Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications

2017
Authors
Šekularac, Gavrilo
Eraković, Sanja

Mijin, Dušan

Pavelkić, Vesna
Stevanović, Jasmina

Panić, Vladimir

Article (Published version)
Metadata
Show full item recordAbstract
For the preparation of RuO2 coatings on Ti substrate, the RuO2 was synthesized in acidic aqueous medium by simple one-step low temperature-controlled microwave (MW) irradiation. The physical composition of synthesized solid phase was analysed through particle size distribution (PSD), whereas the coating was investigated for its capacitive response and activity in oxygen evolution reaction (OER). The oxide phase was found highly polydisperse, with overlapped fractions within rather narrow particle size range and clear tendency toward agglomeration. The smallest particles and their best resolved fractions were synthesized at the temperature just above the boiling point of the reaction medium, and quite below the chloride-to-oxide conversion temperature. Consequently, the highest OER activity was registered for RuO2/Ti anodes prepared from this sample, with strong indication of different oxide structure, with respect to the electrodes prepared from samples synthesized at higher temperatur...es. However, the coatings from high temperature samples have considerably higher capacitance than those synthesized at lower temperatures. These findings can be rather correlated to the MW temperature-dependent oxide structure than to different morphology analysed through PSD.
Keywords:
electrocatalytic oxide materials / hydrothermal synthesis / microwave synthesis / electrochemical impedance spectroscopy / pseudocapacitanceSource:
Journal of the Serbian Chemical Society, 2017, 82, 6, 695-709Publisher:
- Srpsko hemijsko društvo, Beograd
Funding / projects:
- Ministry of Education, Science and Technological Development of the Republic of Serbia
DOI: 10.2298/JSC161229040S
ISSN: 0352-5139
WoS: 000408085700007
Scopus: 2-s2.0-85026775611
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Šekularac, Gavrilo AU - Eraković, Sanja AU - Mijin, Dušan AU - Pavelkić, Vesna AU - Stevanović, Jasmina AU - Panić, Vladimir PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3586 AB - For the preparation of RuO2 coatings on Ti substrate, the RuO2 was synthesized in acidic aqueous medium by simple one-step low temperature-controlled microwave (MW) irradiation. The physical composition of synthesized solid phase was analysed through particle size distribution (PSD), whereas the coating was investigated for its capacitive response and activity in oxygen evolution reaction (OER). The oxide phase was found highly polydisperse, with overlapped fractions within rather narrow particle size range and clear tendency toward agglomeration. The smallest particles and their best resolved fractions were synthesized at the temperature just above the boiling point of the reaction medium, and quite below the chloride-to-oxide conversion temperature. Consequently, the highest OER activity was registered for RuO2/Ti anodes prepared from this sample, with strong indication of different oxide structure, with respect to the electrodes prepared from samples synthesized at higher temperatures. However, the coatings from high temperature samples have considerably higher capacitance than those synthesized at lower temperatures. These findings can be rather correlated to the MW temperature-dependent oxide structure than to different morphology analysed through PSD. PB - Srpsko hemijsko društvo, Beograd T2 - Journal of the Serbian Chemical Society T1 - Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications EP - 709 IS - 6 SP - 695 VL - 82 DO - 10.2298/JSC161229040S ER -
@article{ author = "Šekularac, Gavrilo and Eraković, Sanja and Mijin, Dušan and Pavelkić, Vesna and Stevanović, Jasmina and Panić, Vladimir", year = "2017", abstract = "For the preparation of RuO2 coatings on Ti substrate, the RuO2 was synthesized in acidic aqueous medium by simple one-step low temperature-controlled microwave (MW) irradiation. The physical composition of synthesized solid phase was analysed through particle size distribution (PSD), whereas the coating was investigated for its capacitive response and activity in oxygen evolution reaction (OER). The oxide phase was found highly polydisperse, with overlapped fractions within rather narrow particle size range and clear tendency toward agglomeration. The smallest particles and their best resolved fractions were synthesized at the temperature just above the boiling point of the reaction medium, and quite below the chloride-to-oxide conversion temperature. Consequently, the highest OER activity was registered for RuO2/Ti anodes prepared from this sample, with strong indication of different oxide structure, with respect to the electrodes prepared from samples synthesized at higher temperatures. However, the coatings from high temperature samples have considerably higher capacitance than those synthesized at lower temperatures. These findings can be rather correlated to the MW temperature-dependent oxide structure than to different morphology analysed through PSD.", publisher = "Srpsko hemijsko društvo, Beograd", journal = "Journal of the Serbian Chemical Society", title = "Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications", pages = "709-695", number = "6", volume = "82", doi = "10.2298/JSC161229040S" }
Šekularac, G., Eraković, S., Mijin, D., Pavelkić, V., Stevanović, J.,& Panić, V.. (2017). Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications. in Journal of the Serbian Chemical Society Srpsko hemijsko društvo, Beograd., 82(6), 695-709. https://doi.org/10.2298/JSC161229040S
Šekularac G, Eraković S, Mijin D, Pavelkić V, Stevanović J, Panić V. Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications. in Journal of the Serbian Chemical Society. 2017;82(6):695-709. doi:10.2298/JSC161229040S .
Šekularac, Gavrilo, Eraković, Sanja, Mijin, Dušan, Pavelkić, Vesna, Stevanović, Jasmina, Panić, Vladimir, "Low-temperature-synthesized RuO2 from acidic chloride solution for the electrode coating applications" in Journal of the Serbian Chemical Society, 82, no. 6 (2017):695-709, https://doi.org/10.2298/JSC161229040S . .