Methylviologen-mediated electrochemical synthesis of platinum nanoparticles in solution bulk
- Authors: Yanilkin V.V.1, Nastapova N.V.1, Nasretdinova G.R.1, Fazleeva R.R.1, Fedorenko S.V.1, Mustafina A.R.1, Osin Y.N.2
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Affiliations:
- Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
- Interdisciplinary Center “Analytical Microscopy”
- Issue: Vol 53, No 5 (2017)
- Pages: 509-521
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/188708
- DOI: https://doi.org/10.1134/S1023193517050160
- ID: 188708
Cite item
Abstract
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.
About the authors
V. V. Yanilkin
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Author for correspondence.
Email: yanilkin@iopc.ru
Russian Federation, Kazan, 420088
N. V. Nastapova
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Russian Federation, Kazan, 420088
G. R. Nasretdinova
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Russian Federation, Kazan, 420088
R. R. Fazleeva
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Russian Federation, Kazan, 420088
S. V. Fedorenko
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Russian Federation, Kazan, 420088
A. R. Mustafina
Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center
Email: yanilkin@iopc.ru
Russian Federation, Kazan, 420088
Yu. N. Osin
Interdisciplinary Center “Analytical Microscopy”
Email: yanilkin@iopc.ru
Russian Federation, Kazan, 420018