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A comparative study of the electrochemical properties of carbon nanotubes and carbon black

Само за регистроване кориснике
2009
Аутори
Obradović, Maja
Vuković, G.D.
Stevanović, Sanja
Panić, Vladimir
Uskoković, Petar S.
Kowal, Andrzej
Gojković, Snežana Lj.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документу
Апстракт
Two samples of commercial multi-walled carbon nanotubes (Sigma-Aldrich and Sun Nanotech) and a sample of carbon black (Vulcan XC-72R) were investigated in raw state and after the activation in nitric and sulfuric acid by ultrasound agitation. Atomic force microscopy revealed that activated Sigma-Aldrich nanotubes are straight with corrugated walls (bamboo-like structure), while Sun Nanotech nanotubes are tortuous with smooth walls. Fourier transform infrared spectroscopy showed that abundance of oxygen-containing functional groups was formed on both Sigma-Aldrich and Sun Nanotech carbon nanotubes, as well as on carbon black surfaces. Electrochemical properties were studied by cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the electrochemically active surface area of all carbon samples is expanded, charge storage ability is enhanced and the electron-transfer kinetics, probed by Fe (CN)6 3 - / Fe (CN)6 4 - redox couple, is promoted upon activation. The c...haracteristics of carbon nanotubes were superior to carbon black. Morphology of the carbon nanotubes was found to be important; nanotubes with corrugated walls showed faster electron-transfer and pseudocapacitive redox kinetics than nanotubes with smooth walls. This was explained by the higher proportion of edge and defect sites, which are known as more electrochemically active than the walls of uniform graphene structure.

Кључне речи:
Atomic force microscopy / Carbon nanotubes / Electrochemical impedance spectroscopy / Electrochemistry
Извор:
Journal of Electroanalytical Chemistry, 2009, 634, 1, 22-30
Издавач:
  • Elsevier
Пројекти:
  • Нови материјали за примену у горивим спреговима са полимерном мембраном (RS-142056)

DOI: 10.1016/j.jelechem.2009.07.001

ISSN: 1572-6657

WoS: 000270118100003

Scopus: 2-s2.0-68949186637
[ Google Scholar ]
41
38
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/582
Колекције
  • Radovi istraživača / Researchers' publications
Институција
IHTM
TY  - JOUR
AU  - Obradović, Maja
AU  - Vuković, G.D.
AU  - Stevanović, Sanja
AU  - Panić, Vladimir
AU  - Uskoković, Petar S.
AU  - Kowal, Andrzej
AU  - Gojković, Snežana Lj.
PY  - 2009
UR  - http://cer.ihtm.bg.ac.rs/handle/123456789/582
AB  - Two samples of commercial multi-walled carbon nanotubes (Sigma-Aldrich and Sun Nanotech) and a sample of carbon black (Vulcan XC-72R) were investigated in raw state and after the activation in nitric and sulfuric acid by ultrasound agitation. Atomic force microscopy revealed that activated Sigma-Aldrich nanotubes are straight with corrugated walls (bamboo-like structure), while Sun Nanotech nanotubes are tortuous with smooth walls. Fourier transform infrared spectroscopy showed that abundance of oxygen-containing functional groups was formed on both Sigma-Aldrich and Sun Nanotech carbon nanotubes, as well as on carbon black surfaces. Electrochemical properties were studied by cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the electrochemically active surface area of all carbon samples is expanded, charge storage ability is enhanced and the electron-transfer kinetics, probed by Fe (CN)6 3 - / Fe (CN)6 4 - redox couple, is promoted upon activation. The characteristics of carbon nanotubes were superior to carbon black. Morphology of the carbon nanotubes was found to be important; nanotubes with corrugated walls showed faster electron-transfer and pseudocapacitive redox kinetics than nanotubes with smooth walls. This was explained by the higher proportion of edge and defect sites, which are known as more electrochemically active than the walls of uniform graphene structure.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - A comparative study of the electrochemical properties of carbon nanotubes and carbon black
VL  - 634
IS  - 1
SP  - 22
EP  - 30
DO  - 10.1016/j.jelechem.2009.07.001
ER  - 
@article{
author = "Obradović, Maja and Vuković, G.D. and Stevanović, Sanja and Panić, Vladimir and Uskoković, Petar S. and Kowal, Andrzej and Gojković, Snežana Lj.",
year = "2009",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/582",
abstract = "Two samples of commercial multi-walled carbon nanotubes (Sigma-Aldrich and Sun Nanotech) and a sample of carbon black (Vulcan XC-72R) were investigated in raw state and after the activation in nitric and sulfuric acid by ultrasound agitation. Atomic force microscopy revealed that activated Sigma-Aldrich nanotubes are straight with corrugated walls (bamboo-like structure), while Sun Nanotech nanotubes are tortuous with smooth walls. Fourier transform infrared spectroscopy showed that abundance of oxygen-containing functional groups was formed on both Sigma-Aldrich and Sun Nanotech carbon nanotubes, as well as on carbon black surfaces. Electrochemical properties were studied by cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the electrochemically active surface area of all carbon samples is expanded, charge storage ability is enhanced and the electron-transfer kinetics, probed by Fe (CN)6 3 - / Fe (CN)6 4 - redox couple, is promoted upon activation. The characteristics of carbon nanotubes were superior to carbon black. Morphology of the carbon nanotubes was found to be important; nanotubes with corrugated walls showed faster electron-transfer and pseudocapacitive redox kinetics than nanotubes with smooth walls. This was explained by the higher proportion of edge and defect sites, which are known as more electrochemically active than the walls of uniform graphene structure.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "A comparative study of the electrochemical properties of carbon nanotubes and carbon black",
volume = "634",
number = "1",
pages = "22-30",
doi = "10.1016/j.jelechem.2009.07.001"
}
Obradović M, Vuković G, Stevanović S, Panić V, Uskoković PS, Kowal A, Gojković SL. A comparative study of the electrochemical properties of carbon nanotubes and carbon black. Journal of Electroanalytical Chemistry. 2009;634(1):22-30
Obradović, M., Vuković, G.D., Stevanović, S., Panić, V., Uskoković, P. S., Kowal, A.,& Gojković, S. Lj. (2009). A comparative study of the electrochemical properties of carbon nanotubes and carbon black.
Journal of Electroanalytical ChemistryElsevier., 634(1), 22-30.
https://doi.org/10.1016/j.jelechem.2009.07.001
Obradović Maja, Vuković G.D., Stevanović Sanja, Panić Vladimir, Uskoković Petar S., Kowal Andrzej, Gojković Snežana Lj., "A comparative study of the electrochemical properties of carbon nanotubes and carbon black" 634, no. 1 (2009):22-30,
https://doi.org/10.1016/j.jelechem.2009.07.001 .

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