Morphology and capacitive properties of [RuOxHy/low-surface area carbon black] composite materials prepared by sol-gel procedure
Само за регистроване кориснике
2005
Аутори
Panić, VDekanski, Aleksandar
Gojković, Snežana Lj.
Milonjić, Slobodan K.
Mišković-Stanković, Vesna
Nikolić, Branislav Ž.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The morphology and the capacitive properties of carbon supported hydrous ruthenium oxide (RuOxHy/C), prepared by impregnation of low-surface area carbon black Vulcano (R) XC-72 R with solid phase of RuOxHy sol, were investigated by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The oxide sols of different ageing times, prepared by forced hydrolysis of RuCl3, were used for composite preparation. The prepared composites show considerably higher capacitance values in acid electrolyte if compared to carbon black support. Microscopic investigations show that the extent of impregnation and the composite surface appearance depend on ageing time. The composite capacitance increases with ageing time of oxide sol. A gradual decrease in capacitance of thermally untreated composite with charging/discharging cycles was registered, which appears to be related to the extent of impregnation, too. Electrochemical impedance spectroscopy measurements indicate... an in-depth capacitance distribution through the composite layer. It was found that Nafion (R) layer, used to ensure the adhesion of the composite layer to the current collector, influenced the composite impedance behavior, especially on the oxide-rich parts of the composite surface.
Кључне речи:
carbon supported ruthenium oxide / cyclic voltammetry / electrochemical impedance spectroscopy / forced hydrolysis / RuO2 sol / scanning electron microscopy / supercapacitorsИзвор:
Materials Science Forum, 2005, 494, 235-240Издавач:
- 6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes
DOI: 10.4028/0-87849-971-7.235
ISSN: 0255-5476
PubMed:
WoS: 000230985800039
Scopus: 2-s2.0-33646767228
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Panić, V AU - Dekanski, Aleksandar AU - Gojković, Snežana Lj. AU - Milonjić, Slobodan K. AU - Mišković-Stanković, Vesna AU - Nikolić, Branislav Ž. PY - 2005 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/858 AB - The morphology and the capacitive properties of carbon supported hydrous ruthenium oxide (RuOxHy/C), prepared by impregnation of low-surface area carbon black Vulcano (R) XC-72 R with solid phase of RuOxHy sol, were investigated by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The oxide sols of different ageing times, prepared by forced hydrolysis of RuCl3, were used for composite preparation. The prepared composites show considerably higher capacitance values in acid electrolyte if compared to carbon black support. Microscopic investigations show that the extent of impregnation and the composite surface appearance depend on ageing time. The composite capacitance increases with ageing time of oxide sol. A gradual decrease in capacitance of thermally untreated composite with charging/discharging cycles was registered, which appears to be related to the extent of impregnation, too. Electrochemical impedance spectroscopy measurements indicate an in-depth capacitance distribution through the composite layer. It was found that Nafion (R) layer, used to ensure the adhesion of the composite layer to the current collector, influenced the composite impedance behavior, especially on the oxide-rich parts of the composite surface. PB - 6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes T2 - Materials Science Forum T1 - Morphology and capacitive properties of [RuOxHy/low-surface area carbon black] composite materials prepared by sol-gel procedure EP - 240 SP - 235 VL - 494 DO - 10.4028/0-87849-971-7.235 ER -
@article{ author = "Panić, V and Dekanski, Aleksandar and Gojković, Snežana Lj. and Milonjić, Slobodan K. and Mišković-Stanković, Vesna and Nikolić, Branislav Ž.", year = "2005", abstract = "The morphology and the capacitive properties of carbon supported hydrous ruthenium oxide (RuOxHy/C), prepared by impregnation of low-surface area carbon black Vulcano (R) XC-72 R with solid phase of RuOxHy sol, were investigated by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The oxide sols of different ageing times, prepared by forced hydrolysis of RuCl3, were used for composite preparation. The prepared composites show considerably higher capacitance values in acid electrolyte if compared to carbon black support. Microscopic investigations show that the extent of impregnation and the composite surface appearance depend on ageing time. The composite capacitance increases with ageing time of oxide sol. A gradual decrease in capacitance of thermally untreated composite with charging/discharging cycles was registered, which appears to be related to the extent of impregnation, too. Electrochemical impedance spectroscopy measurements indicate an in-depth capacitance distribution through the composite layer. It was found that Nafion (R) layer, used to ensure the adhesion of the composite layer to the current collector, influenced the composite impedance behavior, especially on the oxide-rich parts of the composite surface.", publisher = "6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes", journal = "Materials Science Forum", title = "Morphology and capacitive properties of [RuOxHy/low-surface area carbon black] composite materials prepared by sol-gel procedure", pages = "240-235", volume = "494", doi = "10.4028/0-87849-971-7.235" }
Panić, V., Dekanski, A., Gojković, S. Lj., Milonjić, S. K., Mišković-Stanković, V.,& Nikolić, B. Ž.. (2005). Morphology and capacitive properties of [RuOxHy/low-surface area carbon black] composite materials prepared by sol-gel procedure. in Materials Science Forum 6th Conference of the Yugoslav Materials Research Society, YUCOMAT VI: Current Research in Advanced Materials and Processes., 494, 235-240. https://doi.org/10.4028/0-87849-971-7.235
Panić V, Dekanski A, Gojković SL, Milonjić SK, Mišković-Stanković V, Nikolić BŽ. Morphology and capacitive properties of [RuOxHy/low-surface area carbon black] composite materials prepared by sol-gel procedure. in Materials Science Forum. 2005;494:235-240. doi:10.4028/0-87849-971-7.235 .
Panić, V, Dekanski, Aleksandar, Gojković, Snežana Lj., Milonjić, Slobodan K., Mišković-Stanković, Vesna, Nikolić, Branislav Ž., "Morphology and capacitive properties of [RuOxHy/low-surface area carbon black] composite materials prepared by sol-gel procedure" in Materials Science Forum, 494 (2005):235-240, https://doi.org/10.4028/0-87849-971-7.235 . .