Structure and Electrical Conductivity of Nitrogen-Doped Carbon Nanofibers Full article
Journal |
Carbon
ISSN: 0008-6223 , E-ISSN: 1873-3891 |
||||||
---|---|---|---|---|---|---|---|
Output data | Year: 2009, Volume: 47, Number: 8, Pages: 1922-1929 Pages count : 8 DOI: 10.1016/j.carbon.2009.02.034 | ||||||
Tags | Concentration (process); Doping (additives); Electric conductivity; Ethylene; Fourier transform infrared spectroscopy; Graphite; Nitrogen | ||||||
Authors |
|
||||||
Affiliations |
|
Funding (4)
1 | Siberian Branch of the Russian Academy of Sciences | 88 |
2 | Президиум РАН | 27.58 |
3 | The Ministry of Education and Science of the Russian Federation | 2.1.1/410 |
4 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 05-1000005-7726 |
Abstract:
The effect of nitrogen concentration in carbon nanofibers (CNFs) on the structural and electrical properties of the carbon material was studied. CNFs with nitrogen concentration varied from 0 to 8.2 wt.% (N-CNFs) with “herringbone” structure were prepared by decomposition of ethylene and ethylene mixture with ammonia over 65Ni–25Cu–10Al2O3 (wt.%) catalyst at 823 K. Detailed investigation of the CNFs and N-CNFs by XPS, FTIR and Raman spectroscopy showed that the nitrogen introduction in carbon material distorts the graphite-like lattice and increases the structure defectiveness. Both effects become more significant as the nitrogen concentration in N-CNFs grows.
The electrical conductivity of N-CNFs with different nitrogen concentrations is caused by the competition of the nanofiber graphite-like structure disordering after introduction of nitrogen atoms and doping of an additional electron into the delocalized π-system of the graphite-like material. As a result, the maximum electrical conductivity among the samples studied was observed at nitrogen concentration in N-CNFs equal to 3.1 wt.%.
Cite:
Ismagilov Z.R.
, Shalagina A.E.
, Podyacheva O.Y.
, Ischenko A.V.
, Kibis L.S.
, Boronin A.I.
, Chesalov Y.A.
, Kochubey D.I.
, Romanenko A.I.
, Anikeeva O.B.
, Buryakov T.I.
, Tkachev E.N.
Structure and Electrical Conductivity of Nitrogen-Doped Carbon Nanofibers
Carbon. 2009. V.47. N8. P.1922-1929. DOI: 10.1016/j.carbon.2009.02.034 WOS Scopus РИНЦ
Structure and Electrical Conductivity of Nitrogen-Doped Carbon Nanofibers
Carbon. 2009. V.47. N8. P.1922-1929. DOI: 10.1016/j.carbon.2009.02.034 WOS Scopus РИНЦ
Dates:
Submitted: | Oct 17, 2008 |
Accepted: | Feb 19, 2009 |
Published online: | Mar 24, 2009 |
Published print: | Jul 1, 2009 |
Identifiers:
Web of science | WOS:000266855800006 |
Scopus | 2-s2.0-67349183202 |
Elibrary | 13613815 |
Chemical Abstracts | 2009:607176 |
Chemical Abstracts (print) | 152:180893 |
OpenAlex | W2020685650 |