Influence of chemical agents on the surface area and porosity of active carbon hollow fibers
2011
Аутори
Kljajević, Ljiljana M.Jovanovic, Vladislava M.
Stevanović, Sanja I.
Bogdanov, Žarko
Kaluđerović, Branka V.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
Active carbon hollow fibers were prepared from regenerated polysulfone hollow fibers by chemical activation using: disodium hydrogen phosphate 2-hydrate, disodium tetraborate 10-hydrate, hydrogen peroxide, and diammonium hydrogen phosphate. After chemical activation fibers were carbonized in an inert atmosphere. The specific surface area and porosity of obtained carbons were studied by nitrogen adsorption-desorption isotherms at 77 K, while the structures were examined with scanning electron microscopy and X-ray diffraction. The activation process increases these adsorption properties of fibers being more pronounced for active carbon fibers obtained with disodium tetraborate 10-hydrate and hydrogen peroxide as activator. The obtained active hollow carbons are microporous with different pore size distribution. Chemical activation with phosphates produces active carbon material with small surface area but with both mesopores and micropores. X-ray diffraction shows that besides turbostrat...ic structure typical for carbon materials, there are some peaks which indicate some intermediate reaction products when sodium salts were used as activating agent. Based on data from the electrochemical measurements the activity and porosity of the active fibers depend strongly on the oxidizing agent applied.
Кључне речи:
carbon hollow fibers / chemical activation / Adsorption / cyclic voltammetryИзвор:
Journal of the Serbian Chemical Society, 2011, 76, 9, 1283-1294Финансирање / пројекти:
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
- Функционални, функционализовани и усавршени нано материјали (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
DOI: 10.2298/JSC100226112K
ISSN: 0352-5139
WoS: 000295659800009
Scopus: 2-s2.0-80053123521
Колекције
Институција/група
VinčaTY - JOUR AU - Kljajević, Ljiljana M. AU - Jovanovic, Vladislava M. AU - Stevanović, Sanja I. AU - Bogdanov, Žarko AU - Kaluđerović, Branka V. PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4515 AB - Active carbon hollow fibers were prepared from regenerated polysulfone hollow fibers by chemical activation using: disodium hydrogen phosphate 2-hydrate, disodium tetraborate 10-hydrate, hydrogen peroxide, and diammonium hydrogen phosphate. After chemical activation fibers were carbonized in an inert atmosphere. The specific surface area and porosity of obtained carbons were studied by nitrogen adsorption-desorption isotherms at 77 K, while the structures were examined with scanning electron microscopy and X-ray diffraction. The activation process increases these adsorption properties of fibers being more pronounced for active carbon fibers obtained with disodium tetraborate 10-hydrate and hydrogen peroxide as activator. The obtained active hollow carbons are microporous with different pore size distribution. Chemical activation with phosphates produces active carbon material with small surface area but with both mesopores and micropores. X-ray diffraction shows that besides turbostratic structure typical for carbon materials, there are some peaks which indicate some intermediate reaction products when sodium salts were used as activating agent. Based on data from the electrochemical measurements the activity and porosity of the active fibers depend strongly on the oxidizing agent applied. T2 - Journal of the Serbian Chemical Society T1 - Influence of chemical agents on the surface area and porosity of active carbon hollow fibers VL - 76 IS - 9 SP - 1283 EP - 1294 DO - 10.2298/JSC100226112K ER -
@article{ author = "Kljajević, Ljiljana M. and Jovanovic, Vladislava M. and Stevanović, Sanja I. and Bogdanov, Žarko and Kaluđerović, Branka V.", year = "2011", abstract = "Active carbon hollow fibers were prepared from regenerated polysulfone hollow fibers by chemical activation using: disodium hydrogen phosphate 2-hydrate, disodium tetraborate 10-hydrate, hydrogen peroxide, and diammonium hydrogen phosphate. After chemical activation fibers were carbonized in an inert atmosphere. The specific surface area and porosity of obtained carbons were studied by nitrogen adsorption-desorption isotherms at 77 K, while the structures were examined with scanning electron microscopy and X-ray diffraction. The activation process increases these adsorption properties of fibers being more pronounced for active carbon fibers obtained with disodium tetraborate 10-hydrate and hydrogen peroxide as activator. The obtained active hollow carbons are microporous with different pore size distribution. Chemical activation with phosphates produces active carbon material with small surface area but with both mesopores and micropores. X-ray diffraction shows that besides turbostratic structure typical for carbon materials, there are some peaks which indicate some intermediate reaction products when sodium salts were used as activating agent. Based on data from the electrochemical measurements the activity and porosity of the active fibers depend strongly on the oxidizing agent applied.", journal = "Journal of the Serbian Chemical Society", title = "Influence of chemical agents on the surface area and porosity of active carbon hollow fibers", volume = "76", number = "9", pages = "1283-1294", doi = "10.2298/JSC100226112K" }
Kljajević, L. M., Jovanovic, V. M., Stevanović, S. I., Bogdanov, Ž.,& Kaluđerović, B. V.. (2011). Influence of chemical agents on the surface area and porosity of active carbon hollow fibers. in Journal of the Serbian Chemical Society, 76(9), 1283-1294. https://doi.org/10.2298/JSC100226112K
Kljajević LM, Jovanovic VM, Stevanović SI, Bogdanov Ž, Kaluđerović BV. Influence of chemical agents on the surface area and porosity of active carbon hollow fibers. in Journal of the Serbian Chemical Society. 2011;76(9):1283-1294. doi:10.2298/JSC100226112K .
Kljajević, Ljiljana M., Jovanovic, Vladislava M., Stevanović, Sanja I., Bogdanov, Žarko, Kaluđerović, Branka V., "Influence of chemical agents on the surface area and porosity of active carbon hollow fibers" in Journal of the Serbian Chemical Society, 76, no. 9 (2011):1283-1294, https://doi.org/10.2298/JSC100226112K . .