Analysis of Defect-Free Graphene Blocks in Nitrogen-Doped Bamboo-Like Carbon Nanotubes | Sciact - CRIS-system of Boreskov Institute of Catalysis

Analysis of Defect-Free Graphene Blocks in Nitrogen-Doped Bamboo-Like Carbon Nanotubes Full article

Journal

Physica Status Solidi (B): Basic Research
ISSN: 0370-1972 , E-ISSN: 1521-3951

Output data

Year: 2018, Volume: 255, Number: 1, Article number : 1700253, Pages count : 6 DOI: 10.1002/pssb.201700253

Tags

carbon nanotubes, defects, doping, nitrogen, Raman spectroscopy

Authors

Podyacheva Olga Yu. ^1,2 , Suboch Arina N. ^1,2 , Bokova-Sirosh Sofya N. ^3,4 , Romanenko Anatoly I. ⁵ , Kibis Lidiya S. ^1,2 , Obraztsova Elena D. ^3,4 , Kuznetsov Vladimir L. ^1,2

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Lavrentieva ave. 5, Novosibirsk 630090, Russia
2	Novosibirsk State University, Pirogova str. 2, Novosibirsk 630090, Russia
3	A. M. Prokhorov General Physics Institute RAS, 38 Vavilova str., Moscow 119991, Russia
4	National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye shosse 31, Moscow 115409, Russia
5	Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva ave. 3, Novosibirsk 630090, Russia

Funding (1)

Federal Agency for Scientific Organizations

0303-2016-0003

The structure and electronic properties of the N-doped bamboo-like carbon nanotubes with different nitrogen content (N-CNTs) are studied by the use of transmission electron microscopy, electron energy loss spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy supplemented by measurements of the temperature dependence of conductivity. XPS data are used to estimate the content of nitrogen represented by pyridinic, pyrrolic, graphitic, and oxidized N species and encapsulated molecular nitrogen. The graphene blocks surrounded by borders containing hole defects and N-species are considered as building blocks of N-CNT walls. The intensity ratio of D, G, and 2D bands in Raman spectra and XPS data on the concentration of N-species are used to analyze the size of defect-free graphene blocks in N-CNTs. The size of such blocks depends on the N-defect content and is estimated to be 1–2 nm. The increase of N-species content resulting in a decrease of graphene block size correlates with the decrease of current carrier concentration (nES) estimated within the Efros–Shklovskii model.

Podyacheva O.Y. , Suboch A.N. , Bokova-Sirosh S.N. , Romanenko A.I. , Kibis L.S. , Obraztsova E.D. , Kuznetsov V.L.
Analysis of Defect-Free Graphene Blocks in Nitrogen-Doped Bamboo-Like Carbon Nanotubes
Physica Status Solidi (B): Basic Research. 2018. V.255. N1. 1700253 :1-6. DOI: 10.1002/pssb.201700253 WOS Scopus РИНЦ AN OpenAlex

Submitted:	May 31, 2017
Accepted:	Aug 18, 2017
Published online:	Sep 19, 2017
Published print:	Jan 1, 2018

Web of science:	WOS:000422746100009
Scopus:	2-s2.0-85030123585
Elibrary:	35482186
Chemical Abstracts:	2017:1524078
OpenAlex:	W2756336435

DB	Citing
Web of science	9
Scopus	9
Elibrary	11
OpenAlex	10