Supercapacitive properties of the alkali metal hydroxides-activated carbons obtained from sucrose
СУПЕРКАПАЦИТИВНА СВОЈСТВА УГЉЕНИЧНИХ МАТЕРИЈАЛА ДОБИЈЕНИХ ИЗ СAХАРОЗЕ И АКТИВИРАНИХ ХИДРОКСИДИМА АЛКАЛНИХ МЕТАЛА
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The influence of different hydroxides, applied to activate carbon black, on the electrochemical properties of activated carbon was investigated. The carbon material was prepared by hydrothermal treatment of sucrose and afterwards thermally activated using KOH, NaOH and LiOH. The electrochemical properties of the obtained samples were examined by cyclic voltammetry and electrochemical impedance spectroscopy and correlated to their physicochemical properties. All samples showed characteristic capacitor-like behaviour. The highest specific capacitance was obtained for the KOH-treated sample, while the increase in capacitance follows the sequence of the growth of ionic radius of a metal from an alkali which is used for activation. It was found that the dependence on the type of hydroxide is due to differences in the radii of a metal. The alkalies of larger radii of metal generated make pores wider and consequently the structure of a porous layer become more accessible to the charge transfe...r of capacitive response.
Кључне речи:
alkali-treated carbon materials / electrochemical capacitance distribution / sucrose-derived carbons / sugar-derived carbonsИзвор:
Journal of the Serbian Chemical Society, 2022, 87, 7-8, 867-877Издавач:
- Serbian Chemical Society
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
DOI: 10.2298/JSC220730059K
ISSN: 0352-5139
WoS: 00083486200000
Scopus: 2-s2.0-85139823032
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Košević, Milica G. AU - Krstić, Sanja S. AU - Panić, Vladimir V. AU - Nikolić, Branislav Ž. PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5236 AB - The influence of different hydroxides, applied to activate carbon black, on the electrochemical properties of activated carbon was investigated. The carbon material was prepared by hydrothermal treatment of sucrose and afterwards thermally activated using KOH, NaOH and LiOH. The electrochemical properties of the obtained samples were examined by cyclic voltammetry and electrochemical impedance spectroscopy and correlated to their physicochemical properties. All samples showed characteristic capacitor-like behaviour. The highest specific capacitance was obtained for the KOH-treated sample, while the increase in capacitance follows the sequence of the growth of ionic radius of a metal from an alkali which is used for activation. It was found that the dependence on the type of hydroxide is due to differences in the radii of a metal. The alkalies of larger radii of metal generated make pores wider and consequently the structure of a porous layer become more accessible to the charge transfer of capacitive response. PB - Serbian Chemical Society T2 - Journal of the Serbian Chemical Society T1 - Supercapacitive properties of the alkali metal hydroxides-activated carbons obtained from sucrose T1 - СУПЕРКАПАЦИТИВНА СВОЈСТВА УГЉЕНИЧНИХ МАТЕРИЈАЛА ДОБИЈЕНИХ ИЗ СAХАРОЗЕ И АКТИВИРАНИХ ХИДРОКСИДИМА АЛКАЛНИХ МЕТАЛА EP - 877 IS - 7-8 SP - 867 VL - 87 DO - 10.2298/JSC220730059K ER -
@article{ author = "Košević, Milica G. and Krstić, Sanja S. and Panić, Vladimir V. and Nikolić, Branislav Ž.", year = "2022", abstract = "The influence of different hydroxides, applied to activate carbon black, on the electrochemical properties of activated carbon was investigated. The carbon material was prepared by hydrothermal treatment of sucrose and afterwards thermally activated using KOH, NaOH and LiOH. The electrochemical properties of the obtained samples were examined by cyclic voltammetry and electrochemical impedance spectroscopy and correlated to their physicochemical properties. All samples showed characteristic capacitor-like behaviour. The highest specific capacitance was obtained for the KOH-treated sample, while the increase in capacitance follows the sequence of the growth of ionic radius of a metal from an alkali which is used for activation. It was found that the dependence on the type of hydroxide is due to differences in the radii of a metal. The alkalies of larger radii of metal generated make pores wider and consequently the structure of a porous layer become more accessible to the charge transfer of capacitive response.", publisher = "Serbian Chemical Society", journal = "Journal of the Serbian Chemical Society", title = "Supercapacitive properties of the alkali metal hydroxides-activated carbons obtained from sucrose, СУПЕРКАПАЦИТИВНА СВОЈСТВА УГЉЕНИЧНИХ МАТЕРИЈАЛА ДОБИЈЕНИХ ИЗ СAХАРОЗЕ И АКТИВИРАНИХ ХИДРОКСИДИМА АЛКАЛНИХ МЕТАЛА", pages = "877-867", number = "7-8", volume = "87", doi = "10.2298/JSC220730059K" }
Košević, M. G., Krstić, S. S., Panić, V. V.,& Nikolić, B. Ž.. (2022). Supercapacitive properties of the alkali metal hydroxides-activated carbons obtained from sucrose. in Journal of the Serbian Chemical Society Serbian Chemical Society., 87(7-8), 867-877. https://doi.org/10.2298/JSC220730059K
Košević MG, Krstić SS, Panić VV, Nikolić BŽ. Supercapacitive properties of the alkali metal hydroxides-activated carbons obtained from sucrose. in Journal of the Serbian Chemical Society. 2022;87(7-8):867-877. doi:10.2298/JSC220730059K .
Košević, Milica G., Krstić, Sanja S., Panić, Vladimir V., Nikolić, Branislav Ž., "Supercapacitive properties of the alkali metal hydroxides-activated carbons obtained from sucrose" in Journal of the Serbian Chemical Society, 87, no. 7-8 (2022):867-877, https://doi.org/10.2298/JSC220730059K . .