Fe–Mo and Co–Mo Catalysts with Varying Composition for Multi-Walled Carbon Nanotube Growth | Sciact - CRIS-system of Boreskov Institute of Catalysis

Fe–Mo and Co–Mo Catalysts with Varying Composition for Multi-Walled Carbon Nanotube Growth 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 : 1700260, Pages count : 12 DOI: 10.1002/pssb.201700260

Tags

defective structure, Fe-Mo and Co-Mo bimetallic catalyst, multi-walled carbon nanotubes, Pechini method

Authors

Kazakova Mariya A. ^1,2 , Kuznetsov Vladimir L. ^1,2 , Bokova-Sirosh Sofia N. ^3,4 , Krasnikov Dmitry V. ^1,2 , Golubtsov Georgiy V. ^1,2 , Romanenko Anatoliy I. ⁵ , Prosvirin Igor P. ^1,2 , Ishchenko Arcadiy V. ^1,2 , Orekhov Andrey S. ^6,7 , Chuvilin Andrey L. ^8,9 , Obraztsova Elena D. ^3,4

Affiliations

1	Novosibirsk State University, 630090 Novosibirsk, Russia
2	Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia
3	A.M. Prokhorov General Physics Institute RAS, 119991 Moscow, Russia
4	National Research Nuclear University MEPhI, 115409 Moscow, Russia
5	Nikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, Russia
6	A.V. Shubnikov Institute of Crystallography RAS, 119333 Moscow, Russia
7	National Research Center “Kurchatov Institute”, 123182 Moscow, Russia
8	CIC nanoGUNE, E-20018 Donostia − San Sebastian, Spain
9	IKERBASQUE Basque Foundation for Science, E-48013 Bilbao, Spain

Funding (2)

1	Russian Foundation for Basic Research	15-32-70013
2	Russian Foundation for Basic Research	16-32-60046

The formation of active component of Fe–Mo and Co–Mo catalysts for carbon nanotube growth with variable Mo content is studied with in situ XRD, XPS, and STEM&EDX. The activation of bimetallic Fe–Mo catalysts under the growth conditions leads to the formation of Fe–Mo alloy particles in contrast to Co-containing catalysts in which active alloy incorporates only a small portion of Mo (<2–3 at.%). The stable carbide formation for these systems is not detected. The effect of Mo content in Fe–Mo and Co–Mo catalysts on the properties of MWCNTs is additionally investigated using the Raman spectroscopy in combination with measurements of the temperature dependence of conductivity. It is shown that MWCNT defectiveness depends on the active component composition for both Fe–Mo and Co–Mo catalysts. The current carrier concentration for the MWCNTs grown on Fe–Mo catalysts slightly increases with the Mo content. The opposite effect is observed for the tubes grown on Co–Mo catalysts, showing a decrease in the current carrier concentration with the increase of Mo concentration.

Kazakova M.A. , Kuznetsov V.L. , Bokova-Sirosh S.N. , Krasnikov D.V. , Golubtsov G.V. , Romanenko A.I. , Prosvirin I.P. , Ishchenko A.V. , Orekhov A.S. , Chuvilin A.L. , Obraztsova E.D.
Fe–Mo and Co–Mo Catalysts with Varying Composition for Multi-Walled Carbon Nanotube Growth
Physica Status Solidi (B): Basic Research. 2018. V.255. N1. 1700260 :1-12. DOI: 10.1002/pssb.201700260 WOS Scopus РИНЦ AN OpenAlex

Submitted:	May 31, 2017
Accepted:	Sep 18, 2017
Published online:	Oct 27, 2017
Published print:	Jan 1, 2018

Web of science:	WOS:000422746100016
Scopus:	2-s2.0-85040795671
Elibrary:	35543144
Chemical Abstracts:	2017:1731961
OpenAlex:	W2766809893

DB	Citing
Web of science	26
Scopus	31
Elibrary	27
OpenAlex	29