Methylviologen-mediated electrochemical synthesis of platinum nanoparticles in solution bulk
- Авторы: Yanilkin V.1, Nastapova N.1, Nasretdinova G.1, Fazleeva R.1, Fedorenko S.1, Mustafina A.1, Osin Y.2
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Учреждения:
- Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
- Interdisciplinary Center “Analytical Microscopy”
- Выпуск: Том 53, № 5 (2017)
- Страницы: 509-521
- Раздел: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/188708
- DOI: https://doi.org/10.1134/S1023193517050160
- ID: 188708
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Аннотация
Platinum nanoparticles (PtNPs) are synthesized by methylviologen-mediated reduction of PtCl2 at the potentials of the MV2+/MV•+ redox couple in 40% aqueous DMF solution. In the absence of stabilizing agents and in the presence of a stabilizer in the form of spherical silica NPs or alkylamine-modified silica NPs (SiO2-NHR), a part of PtNPs (14–18%) are deposited on the electrode while the rest of particles remain in solution to form coarse aggregates which precipitate. In the latter case, PtNPs are also partly bound to form individual ultrafine NPs (3 ± 2 nm) on the SiO2-NHR surface. In the presence of polyvinylpyrrolidone (PVP), the generated PtNPs (18 ± 9 nm) neither aggregate nor deposit on the cathode but are completely stabilized in solution being encapsulated within the PVP matrix. The obtained PtNPs are characterized by the methods of dynamic light-scattering and electron microscopy.
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Об авторах
V. Yanilkin
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Автор, ответственный за переписку.
Email: yanilkin@iopc.ru
Россия, Kazan, 420088
N. Nastapova
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Россия, Kazan, 420088
G. Nasretdinova
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Россия, Kazan, 420088
R. Fazleeva
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Россия, Kazan, 420088
S. Fedorenko
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Россия, Kazan, 420088
A. Mustafina
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Россия, Kazan, 420088
Yu. Osin
Interdisciplinary Center “Analytical Microscopy”
Email: yanilkin@iopc.ru
Россия, Kazan, 420018