Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers
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2017
Authors
Mijailović, DanielVukčević, Marija
Stević, Zoran
Kalijadis, Ana
Stojanović, Dušica
Panić, Vladimir
Uskoković, Petar
Article (Published version)
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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, A1061-A1068Publisher:
- Electrochemical Soc Inc, Pennington
Funding / projects:
- Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
- New approach in designing materials for energy conversion and energy storage systems (RS-172060)
DOI: 10.1149/2.0581706jes
ISSN: 0013-4651
WoS: 000401607500078
Scopus: 2-s2.0-85027015795
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Tehnološko-metalurški fakultetTY - JOUR AU - Mijailović, Daniel AU - Vukčević, Marija AU - Stević, Zoran AU - Kalijadis, Ana AU - Stojanović, Dušica AU - Panić, Vladimir AU - Uskoković, Petar PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3720 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 - Electrochemical Soc Inc, Pennington T2 - Journal of the Electrochemical Society T1 - Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers EP - A1068 IS - 6 SP - A1061 VL - 164 DO - 10.1149/2.0581706jes ER -
@article{ author = "Mijailović, Daniel and Vukčević, Marija and Stević, Zoran and Kalijadis, Ana and Stojanović, Dušica and Panić, Vladimir and Uskoković, Petar", 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 = "Electrochemical Soc Inc, Pennington", journal = "Journal of the Electrochemical Society", title = "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers", pages = "A1068-A1061", number = "6", volume = "164", doi = "10.1149/2.0581706jes" }
Mijailović, D., Vukčević, M., Stević, Z., Kalijadis, A., Stojanović, D., Panić, V.,& Uskoković, P.. (2017). Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society Electrochemical Soc Inc, Pennington., 164(6), A1061-A1068. https://doi.org/10.1149/2.0581706jes
Mijailović D, Vukčević M, Stević Z, Kalijadis A, Stojanović D, Panić V, Uskoković P. Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers. in Journal of the Electrochemical Society. 2017;164(6):A1061-A1068. doi:10.1149/2.0581706jes .
Mijailović, Daniel, Vukčević, Marija, Stević, Zoran, Kalijadis, Ana, Stojanović, Dušica, Panić, Vladimir, Uskoković, Petar, "Supercapacitive Performances of Activated Highly Microporous Natural Carbon Macrofibers" in Journal of the Electrochemical Society, 164, no. 6 (2017):A1061-A1068, https://doi.org/10.1149/2.0581706jes . .