Ministry of Science and Technological Development of the Republic Serbia [151005B, 142002]

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Ministry of Science and Technological Development of the Republic Serbia [151005B, 142002]

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Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption

Kalijadis, Ana; Vukčević, Marija M.; Jovanović, Zoran M.; Laušević, Zoran; Laušević, Mila D.

(2011)

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Vukčević, Marija M.
AU  - Jovanović, Zoran M.
AU  - Laušević, Zoran
AU  - Laušević, Mila D.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4342
AB  - The surface characteristics of different carbon materials: activated carbon, carbon felt, glassy carbon and a porous carbon monolith were investigated. The specific surface area was examined by the BET method with N(2) adsorption, the amount and the type of surface oxygen groups by Boehm titration as well as by temperature-programmed desorption (TPD). By comparing the results obtained using BET analysis with those of TPD and the Boehm method, it was found that the number of surface groups was not proportional to the specific surface area. The total amount of oxygen groups, obtained by TPD, is higher than the amount obtained by Boehms method for porous samples. The inconsistencies between these results originate from the fact that the Boehm method is limited to the determination of acidic and basic groups, whereas TPD provides information on the total number of all surface oxygen groups. In addition, the presence of porosity could reduce the solvent-accessible surface in the Boehm method. The TPD profiles of CO evolution showed the presence of a low temperature maximum, below 650 K, which originates from CO(2) reduction on the carbon material surface.
T2  - Journal of the Serbian Chemical Society
T1  - Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption
VL  - 76
IS  - 5
SP  - 757
EP  - 768
DO  - 10.2298/JSC091224056K
ER  - 
@article{
author = "Kalijadis, Ana and Vukčević, Marija M. and Jovanović, Zoran M. and Laušević, Zoran and Laušević, Mila D.",
year = "2011",
abstract = "The surface characteristics of different carbon materials: activated carbon, carbon felt, glassy carbon and a porous carbon monolith were investigated. The specific surface area was examined by the BET method with N(2) adsorption, the amount and the type of surface oxygen groups by Boehm titration as well as by temperature-programmed desorption (TPD). By comparing the results obtained using BET analysis with those of TPD and the Boehm method, it was found that the number of surface groups was not proportional to the specific surface area. The total amount of oxygen groups, obtained by TPD, is higher than the amount obtained by Boehms method for porous samples. The inconsistencies between these results originate from the fact that the Boehm method is limited to the determination of acidic and basic groups, whereas TPD provides information on the total number of all surface oxygen groups. In addition, the presence of porosity could reduce the solvent-accessible surface in the Boehm method. The TPD profiles of CO evolution showed the presence of a low temperature maximum, below 650 K, which originates from CO(2) reduction on the carbon material surface.",
journal = "Journal of the Serbian Chemical Society",
title = "Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption",
volume = "76",
number = "5",
pages = "757-768",
doi = "10.2298/JSC091224056K"
}
Kalijadis, A., Vukčević, M. M., Jovanović, Z. M., Laušević, Z.,& Laušević, M. D.. (2011). Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption. in Journal of the Serbian Chemical Society, 76(5), 757-768.
https://doi.org/10.2298/JSC091224056K
Kalijadis A, Vukčević MM, Jovanović ZM, Laušević Z, Laušević MD. Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption. in Journal of the Serbian Chemical Society. 2011;76(5):757-768.
doi:10.2298/JSC091224056K .
Kalijadis, Ana, Vukčević, Marija M., Jovanović, Zoran M., Laušević, Zoran, Laušević, Mila D., "Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption" in Journal of the Serbian Chemical Society, 76, no. 5 (2011):757-768,
https://doi.org/10.2298/JSC091224056K . .
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