Electrochemical tuning of capacitive response of graphene oxide
Аутори
Gutić, Sanjin J.Kozlica, Dževad K.
Korać, Fehim
Bajuk-Bogdanović, Danica V.
Mitrić, Miodrag
Mirsky, Vladimir M.
Mentus, Slavko V.
Pašti, Igor A.
Чланак у часопису (Рецензирана верзија)
Метаподаци
Приказ свих података о документуАпстракт
The increasing energy demands of modern society require a deep understanding of the properties of energy storage materials, as well as the tuning of their performance. We show that the capacitance of graphene oxide (GO) can be precisely tuned using a simple electrochemical reduction route. In situ resistance measurements, in combination with cyclic voltammetry measurements and Raman spectroscopy, have shown that upon reduction GO is irreversibly deoxygenated, which is further accompanied by structural ordering and an increase in electrical conductivity. The capacitance is maximized when the concentration of oxygen functional groups is properly balanced with the conductivity. Any further reduction and deoxygenation leads to a gradual loss of capacitance. The observed trend is independent of the preparation route and the exact chemical and structural properties of GO. It is proposed that an improvement in the capacitive properties of any GO can be achieved by optimization of its reductio...n conditions.
Кључне речи:
graphene / graphene oxide / capacitance / electrochemical reductionИзвор:
Physical Chemistry Chemical Physics, 2018, 20, 35, 22698-22709Финансирање / пројекти:
- Литијум-јон батерије и горивне ћелије-истраживање и развој (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- Serbian Academy of Sciences and Arts ("Electrocatalysis in the contemporary processes of energy conversion")
Напомена:
- This is the peer-reviewed version of the following article: Gutić, Sanjin J., Dževad Kozlica, Fehim Korać, Danica Bajuk-Bogdanović, Miodrag Mitrić, Vladimir M. Mirsky, Slavko V. Mentus, and Igor A. Pašti. "Electrochemical tuning of capacitive response of graphene oxide." (2018). https://doi.org/10.1039/C8CP03631D
- Published version available at: http://vinar.vin.bg.ac.rs/handle/123456789/7877
DOI: 10.1039/C8CP03631D
ISSN: 1463-9076
PubMed: 30137091
WoS: 000445220500029
Scopus: 2-s2.0-85053415841
Колекције
Институција/група
VinčaTY - JOUR AU - Gutić, Sanjin J. AU - Kozlica, Dževad K. AU - Korać, Fehim AU - Bajuk-Bogdanović, Danica V. AU - Mitrić, Miodrag AU - Mirsky, Vladimir M. AU - Mentus, Slavko V. AU - Pašti, Igor A. PY - 2018 UR - http://xlink.rsc.org/?DOI=C8CP03631D UR - https://vinar.vin.bg.ac.rs/handle/123456789/7887 AB - The increasing energy demands of modern society require a deep understanding of the properties of energy storage materials, as well as the tuning of their performance. We show that the capacitance of graphene oxide (GO) can be precisely tuned using a simple electrochemical reduction route. In situ resistance measurements, in combination with cyclic voltammetry measurements and Raman spectroscopy, have shown that upon reduction GO is irreversibly deoxygenated, which is further accompanied by structural ordering and an increase in electrical conductivity. The capacitance is maximized when the concentration of oxygen functional groups is properly balanced with the conductivity. Any further reduction and deoxygenation leads to a gradual loss of capacitance. The observed trend is independent of the preparation route and the exact chemical and structural properties of GO. It is proposed that an improvement in the capacitive properties of any GO can be achieved by optimization of its reduction conditions. T2 - Physical Chemistry Chemical Physics T1 - Electrochemical tuning of capacitive response of graphene oxide VL - 20 IS - 35 SP - 22698 EP - 22709 DO - 10.1039/C8CP03631D ER -
@article{ author = "Gutić, Sanjin J. and Kozlica, Dževad K. and Korać, Fehim and Bajuk-Bogdanović, Danica V. and Mitrić, Miodrag and Mirsky, Vladimir M. and Mentus, Slavko V. and Pašti, Igor A.", year = "2018", abstract = "The increasing energy demands of modern society require a deep understanding of the properties of energy storage materials, as well as the tuning of their performance. We show that the capacitance of graphene oxide (GO) can be precisely tuned using a simple electrochemical reduction route. In situ resistance measurements, in combination with cyclic voltammetry measurements and Raman spectroscopy, have shown that upon reduction GO is irreversibly deoxygenated, which is further accompanied by structural ordering and an increase in electrical conductivity. The capacitance is maximized when the concentration of oxygen functional groups is properly balanced with the conductivity. Any further reduction and deoxygenation leads to a gradual loss of capacitance. The observed trend is independent of the preparation route and the exact chemical and structural properties of GO. It is proposed that an improvement in the capacitive properties of any GO can be achieved by optimization of its reduction conditions.", journal = "Physical Chemistry Chemical Physics", title = "Electrochemical tuning of capacitive response of graphene oxide", volume = "20", number = "35", pages = "22698-22709", doi = "10.1039/C8CP03631D" }
Gutić, S. J., Kozlica, D. K., Korać, F., Bajuk-Bogdanović, D. V., Mitrić, M., Mirsky, V. M., Mentus, S. V.,& Pašti, I. A.. (2018). Electrochemical tuning of capacitive response of graphene oxide. in Physical Chemistry Chemical Physics, 20(35), 22698-22709. https://doi.org/10.1039/C8CP03631D
Gutić SJ, Kozlica DK, Korać F, Bajuk-Bogdanović DV, Mitrić M, Mirsky VM, Mentus SV, Pašti IA. Electrochemical tuning of capacitive response of graphene oxide. in Physical Chemistry Chemical Physics. 2018;20(35):22698-22709. doi:10.1039/C8CP03631D .
Gutić, Sanjin J., Kozlica, Dževad K., Korać, Fehim, Bajuk-Bogdanović, Danica V., Mitrić, Miodrag, Mirsky, Vladimir M., Mentus, Slavko V., Pašti, Igor A., "Electrochemical tuning of capacitive response of graphene oxide" in Physical Chemistry Chemical Physics, 20, no. 35 (2018):22698-22709, https://doi.org/10.1039/C8CP03631D . .