Form of presentation | Articles in international journals and collections |
Year of publication | 2018 |
Язык | английский |
|
Ziganshina Albina Yulduzovna, author
|
Bibliographic description in the original language |
V. V. Yanilkin, N. V. Nastapova, R. R. Fazleeva, G. R. Nasretdinova, E. D. Sultanova, A. Yu. Ziganshina, A. T. Gubaidullin, A. I. Samigullina, V. G. Evtyugin, V. V. Vorob'ev and Yu. N. Osin, Molecular Oxygen as Mediator in the Metal Nanoparticles' Electrosynthesis in N,N-Dimethylformamide // Russ. J. Electrochem. – 2018. – 54. – 265–282. |
Annotation |
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. |
Keywords |
nanoparticle, silver, gold |
The name of the journal |
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
|
URL |
https://link.springer.com/article/10.1134/S1023193518030102#citeas |
Please use this ID to quote from or refer to the card |
https://repository.kpfu.ru/eng/?p_id=262907&p_lang=2 |
Full metadata record ![](https://shelly.kpfu.ru/pdf/picture/arrow_black_right.gif) |
Field DC |
Value |
Language |
dc.contributor.author |
Ziganshina Albina Yulduzovna |
ru_RU |
dc.date.accessioned |
2018-01-01T00:00:00Z |
ru_RU |
dc.date.available |
2018-01-01T00:00:00Z |
ru_RU |
dc.date.issued |
2018 |
ru_RU |
dc.identifier.citation |
V. V. Yanilkin, N. V. Nastapova, R. R. Fazleeva, G. R. Nasretdinova, E. D. Sultanova, A. Yu. Ziganshina, A. T. Gubaidullin, A. I. Samigullina, V. G. Evtyugin, V. V. Vorob'ev and Yu. N. Osin, Molecular Oxygen as Mediator in the Metal Nanoparticles' Electrosynthesis in N,N-Dimethylformamide // Russ. J. Electrochem. – 2018. – 54. – 265–282. |
ru_RU |
dc.identifier.uri |
https://repository.kpfu.ru/eng/?p_id=262907&p_lang=2 |
ru_RU |
dc.description.abstract |
RUSSIAN JOURNAL OF ELECTROCHEMISTRY |
ru_RU |
dc.description.abstract |
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. |
ru_RU |
dc.language.iso |
ru |
ru_RU |
dc.subject |
nanoparticle |
ru_RU |
dc.subject |
silver |
ru_RU |
dc.subject |
gold |
ru_RU |
dc.title |
Molecular Oxygen as Mediator in the Metal Nanoparticles' Electrosynthesis in N,N-Dimethylformamide |
ru_RU |
dc.type |
Articles in international journals and collections |
ru_RU |
|