Direct Vapor-Phase Bromination of Multiwall Carbon Nanotubes | Sciact - CRIS-system of Boreskov Institute of Catalysis

Direct Vapor-Phase Bromination of Multiwall Carbon Nanotubes Full article

Journal

Journal of Nanotechnology
ISSN: 1687-9503 , E-ISSN: 1687-9511

Output data

Year: 2012, Volume: 2012, Pages: 954084 Pages count : 5 DOI: 10.1155/2012/954084

Tags

Carbon nanotubes; Differential thermal analysis; Functional groups; Photoelectrons; Transmission electron microscopy; X ray photoelectron spectroscopy

Authors

Mazov Ilya ¹ , Krasnikov Dmitry ^1,2 , Stadnichenko Andrey ¹ , Kuznetsov Vladimir ¹ , Romanenko Anatoly ^2,3 , Anikeeva Olga ^2,3 , Tkachev Evgeniy ³

Affiliations

1	Department of Physical Methods of Research, Boreskov Institute of Catalysis, Lavrentieva Avenue 5, Novosibirsk 630090, Russia
2	Department of Thermodynamic Studies, Novosibirsk State University, Pirogova street 2, Novosibirsk 630090, Russia
3	Department of Physics, Nikolaev Institute of Inorganic Chemistry, Lavrentieva Avenue 5, Novosibirsk 630090, Russia

Funding (4)

1	Russian Foundation for Basic Research	11-03-00351
2	International Science and Technology Center	B-1708
3	The Ministry of Education and Science of the Russian Federation	16.740.11.0016
4	The Ministry of Education and Science of the Russian Federation	16.740.11.0146

We present the simple procedure of the vapor-phase bromination of multiwall carbon nanotubes (MWNTs) at moderate temperatures. MWNTs with average diameter 9 ± 3 nm were treated with Br2 vapors at 250°C to produce Br-functionalized product. Transmission electron microscopy analysis was used to prove low damage of MWNT walls during bromination. X-ray photoelectron spectroscopy (XPS) and differential thermal analysis (DTA) were used to investigate chemical composition of the surface of initial and brominated nanotubes. The experimental results show that the structure of MWNTs is not affected by the bromination process and the total amount of Br-containing surface functions reaches 2.5 wt. %. Electrophysical properties of initial and brominated MWNTs were investigated showing decrease of conductivity for functionalized sample. Possible mechanism of the vapor-phase bromination via surface defects and oxygen-containing functional groups was proposed according to data obtained. Additional experiments with bromination of annealed low-defected MWNTs were performed giving Br content a low as 0.75 wt. % proving this hypothesis.

Mazov I. , Krasnikov D. , Stadnichenko A. , Kuznetsov V. , Romanenko A. , Anikeeva O. , Tkachev E.
Direct Vapor-Phase Bromination of Multiwall Carbon Nanotubes

Journal of Nanotechnology. 2012. V.2012. P.954084. DOI: 10.1155/2012/954084 WOS Scopus РИНЦ ANCAN OpenAlex

Full text from publisher

Submitted:	Nov 29, 2011
Accepted:	Mar 20, 2012

Web of science:	WOS:000215658200103
Scopus:	2-s2.0-84862291631
Elibrary:	17991743
Chemical Abstracts:	2012:826856
Chemical Abstracts (print):	158:309339
OpenAlex:	W2039107534

DB	Citing
Scopus	24
Elibrary	16
OpenAlex	29
Web of science	17