Enviar artigo por via de e-mail Molecular Oxygen as Mediator in the Metal Nanoparticles’ Electrosynthesis in N,N-Dimethylformamide
- Autores: Yanilkin V.V.1, Nastapova N.V.1, Fazleeva R.R.1, Nasretdinova G.R.1, Sultanova E.D.1, Ziganshina A.Y.1, Gubaidullin A.T.1, Samigullina A.I.1, Evtyugin V.G.2, Vorob’ev V.V.2, Osin Y.N.2
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Afiliações:
- Arbuzov Institute of Organic and Physical Chemistry
- Interdisciplinary Center “Analytical Microscopy,”
- Edição: Volume 54, Nº 3 (2018)
- Páginas: 265-282
- Seção: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189290
- DOI: https://doi.org/10.1134/S1023193518030102
- ID: 189290
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Resumo
Ultra-fine gold (<2 nm), silver (5 ± 2 nm), and palladium (<1–2 nm) nanoparticles stabilized in polyvinylpyrrolidone shell were synthesized in N,N-dimethylformamide, using molecular oxygen dissolved in the electrolyte as mediator, by the reduction of the metals’ ions and complexes at the controlled potential of the oxygen reduction to its radical-anion. Pd-nanoparticles showed high catalytic activity in the reactions of p-nitrophenol reduction and Suzuki cross-coupling. Long-term ageing of spherical Ag-nanoparticles for 60 days in the post- electrolysis solution resulted in their consolidation (up to 17 ± 5 nm; the average size of crystallites 7.5 (3) nm). Upon similar exposure of Au-nanoparticles for 15 days, V-shaped nanoparticles were formed (length 112 ± 53 nm, width 58 ± 22 nm, crystallites 20(2)–31(1) nm); upon the isolation, dispersing into ethanol, and exposure for 48 h, hexagonal nanoparticles (105 ± 29 nm) and polygons (56 ± 25 nm, crystallites 24(2)–51(1) nm; upon dispersing into water and exposure for 8 h, spherical nanoparticles (13 ± 8 nm, crystallites 7(1)–13.4(5) nm). Thus obtained nanoparticles are characterized by methods of cyclic voltammetry, dynamic light scattering, scanning and high resolution transmission electron microscopy, and X-ray powder diffraction.
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Sobre autores
V. Yanilkin
Arbuzov Institute of Organic and Physical Chemistry
Autor responsável pela correspondência
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
N. Nastapova
Arbuzov Institute of Organic and Physical Chemistry
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
R. Fazleeva
Arbuzov Institute of Organic and Physical Chemistry
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
G. Nasretdinova
Arbuzov Institute of Organic and Physical Chemistry
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
E. Sultanova
Arbuzov Institute of Organic and Physical Chemistry
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
A. Ziganshina
Arbuzov Institute of Organic and Physical Chemistry
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
A. Gubaidullin
Arbuzov Institute of Organic and Physical Chemistry
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
A. Samigullina
Arbuzov Institute of Organic and Physical Chemistry
Email: yanilkin@iopc.ru
Rússia, ul. Lenina 18, Kazan, 420008
V. Evtyugin
Interdisciplinary Center “Analytical Microscopy,”
Email: yanilkin@iopc.ru
Rússia, ul. Kremlevskaya 18, Kazan, 420018
V. Vorob’ev
Interdisciplinary Center “Analytical Microscopy,”
Email: yanilkin@iopc.ru
Rússia, ul. Kremlevskaya 18, Kazan, 420018
Yu. Osin
Interdisciplinary Center “Analytical Microscopy,”
Email: yanilkin@iopc.ru
Rússia, ul. Kremlevskaya 18, Kazan, 420018
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