Activated carbons with high specific surface area (even above 2000 m(2) g(-1)) and pronounced microporosity are prepared in two-stage process involving conventional carbonization of waste hemp fibers and subsequent activation by potassium hydroxide. Samples with considerably different surface and intrinsic micro-and mesoporous properties are obtained at different carbonization and activation conditions. The improvements of the capacitive properties are found upon increase in carbonization temperature, since it considerably influenced the specific surface area and the content of surface oxygen groups. Cyclic voltammetry experiments reveal the dependence of specific capacitance on the sweep rate due to the characteristic porous structure of the samples. The highest measured value in 1 M H2SO4 solution is 122 F g(-1). The electrochemical impedance data indicates eight-branch transmission line equivalent electric behavior of activated carbons.
Source:
Journal of the Electrochemical Society, 2017, 164, 6
TY - JOUR
AU - Mijailović, Daniel M.
AU - Vukčević, Marija M.
AU - Stević, Zoran
AU - Kalijadis, Ana M.
AU - Stojanovic, Dusica B.
AU - Panić, Vladimir
AU - Uskoković, Petar S.
PY - 2017
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2268
AB - Activated carbons with high specific surface area (even above 2000 m(2) g(-1)) and pronounced microporosity are prepared in two-stage process involving conventional carbonization of waste hemp fibers and subsequent activation by potassium hydroxide. Samples with considerably different surface and intrinsic micro-and mesoporous properties are obtained at different carbonization and activation conditions. The improvements of the capacitive properties are found upon increase in carbonization temperature, since it considerably influenced the specific surface area and the content of surface oxygen groups. Cyclic voltammetry experiments reveal the dependence of specific capacitance on the sweep rate due to the characteristic porous structure of the samples. The highest measured value in 1 M H2SO4 solution is 122 F g(-1). The electrochemical impedance data indicates eight-branch transmission line equivalent electric behavior of activated carbons.
PB - Pennington : Electrochemical Society Inc.
T2 - Journal of the Electrochemical Society
T1 - Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers
VL - 164
IS - 6
DO - 10.1149/2.0581706jes
ER -
@article{
author = "Mijailović, Daniel M. and Vukčević, Marija M. and Stević, Zoran and Kalijadis, Ana M. and Stojanovic, Dusica B. and Panić, Vladimir and Uskoković, Petar S.",
year = "2017",
abstract = "Activated carbons with high specific surface area (even above 2000 m(2) g(-1)) and pronounced microporosity are prepared in two-stage process involving conventional carbonization of waste hemp fibers and subsequent activation by potassium hydroxide. Samples with considerably different surface and intrinsic micro-and mesoporous properties are obtained at different carbonization and activation conditions. The improvements of the capacitive properties are found upon increase in carbonization temperature, since it considerably influenced the specific surface area and the content of surface oxygen groups. Cyclic voltammetry experiments reveal the dependence of specific capacitance on the sweep rate due to the characteristic porous structure of the samples. The highest measured value in 1 M H2SO4 solution is 122 F g(-1). The electrochemical impedance data indicates eight-branch transmission line equivalent electric behavior of activated carbons.",
publisher = "Pennington : Electrochemical Society Inc.",
journal = "Journal of the Electrochemical Society",
title = "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers",
volume = "164",
number = "6",
doi = "10.1149/2.0581706jes"
}
Mijailović, D. M., Vukčević, M. M., Stević, Z., Kalijadis, A. M., Stojanovic, D. B., Panić, V.,& Uskoković, P. S.. (2017). Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society
Pennington : Electrochemical Society Inc.., 164(6).
https://doi.org/10.1149/2.0581706jes
Mijailović DM, Vukčević MM, Stević Z, Kalijadis AM, Stojanovic DB, Panić V, Uskoković PS. Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society. 2017;164(6).
doi:10.1149/2.0581706jes .
Mijailović, Daniel M., Vukčević, Marija M., Stević, Zoran, Kalijadis, Ana M., Stojanovic, Dusica B., Panić, Vladimir, Uskoković, Petar S., "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers" in Journal of the Electrochemical Society, 164, no. 6 (2017),
https://doi.org/10.1149/2.0581706jes . .
