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Co Metal Nanoparticles Deposition Inside or Outside Multi-Walled Carbon Nanotubes via Facile Support Pretreatment Full article

Journal Applied Surface Science
ISSN: 0169-4332
Output data Year: 2018, Volume: 456, Pages: 657-665 Pages count : 9 DOI: 10.1016/j.apsusc.2018.06.124
Tags Co/MWCNT hybrids; Metal-support interaction; Ferromagnetism; 59Co NMR; HRTEM; In-situ XRD
Authors Kazakova Mariya A. 1,2 , Andreev Andrey S. 2,3 , Selyutin Alexander G. 2 , Ishchenko Arcady V. 1,2 , Shuvaev Alexander V. 4 , Kuznetsov Vladimir L. 1,2 , Lapina Olga B. 1,2 , d'Espinose de Lacaillerie Jean-Baptiste 3
Affiliations
1 Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
2 Boreskov Institute of Catalysis, SB RAS, Lavrentieva 5, Novosibirsk 630090, Russia
3 Soft Matter Science and Engineering (SIMM), UMR CNRS 7615, PSL Research University, ESPCI Paris, Paris 75005, France
4 Siberian Transport University, D. Kovalchuk 191, Novosibirsk 630049, Russia

Funding (4)

1 Russian Foundation for Basic Research 16-32-60046
2 Russian Foundation for Basic Research 17-53-150018
3 French Embassy in Moscow
4 The City of Paris Industrial Physics and Chemistry Higher Educational Institution Société des Amis de l’ESPCI

Abstract: Decoration of one-dimensional multi-walled carbon nanotubes (MWCNTs) with zero-dimensional Co nanoparticles leads to hybrid structures with chemical and electromagnetic features that are not available to the individual components. This work addresses the influence of the nature and structure of MWCNTs on the localization of Co nanoparticles. Depending on synthesis conditions, Co can be deposited on the external or in inner surfaces of the nanotubes. Co/MWCNTs hybrids have been characterized by in situ X-ray powder diffraction, high-resolution transmission electron microscopy and 59Co internal field nuclear magnetic resonance. It has been shown that the average diameter (7.2, 9.4 and 18.6 nm), number of walls (5–7, 12–15, 15–20), and functional composition of the MWCNTs have a remarkable effect on the size of Co nanoparticles and their distribution in the structure of MWCNTs. The observed phenomenon has been rationalized in terms of nanotubes surface properties. Parent MWCNTs being hydrophobic and having limited porosity do not stabilize Co nanoparticles and, therefore, they are localized on the outside surface with relatively large average size and broad size distribution. On the other hand, the oxidation of the MWCNTs resulted in the penetration of Co nanoparticles inside of the nanotubes, presumably because of pore opening as well as increased hydrophilicity of the nanotubes.
Cite: Kazakova M.A. , Andreev A.S. , Selyutin A.G. , Ishchenko A.V. , Shuvaev A.V. , Kuznetsov V.L. , Lapina O.B. , d'Espinose de Lacaillerie J-B.
Co Metal Nanoparticles Deposition Inside or Outside Multi-Walled Carbon Nanotubes via Facile Support Pretreatment
Applied Surface Science. 2018. V.456. P.657-665. DOI: 10.1016/j.apsusc.2018.06.124 WOS Scopus РИНЦ AN OpenAlex
Files: Full text from publisher
Dates:
Submitted: Mar 26, 2018
Accepted: Jun 13, 2018
Published online: Jun 19, 2018
Published print: Oct 1, 2018
Identifiers:
Web of science: WOS:000441281300077
Scopus: 2-s2.0-85048972033
Elibrary: 35750110
Chemical Abstracts: 2018:1209312
OpenAlex: W2808892032
Citing:
DB Citing
Web of science 29
Scopus 31
Elibrary 27
OpenAlex 32
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