Enviar artigo por via de e-mail Electrochemical synthesis of metal nanoparticles using a polymeric mediator, whose reduced form is adsorbed (deposited) on an electrode
- Autores: Yanilkin V.1, Nastapova N.1, Fazleeva R.1, Nasretdinova G.1, Sultanova E.1, Ziganshina A.1, Gubaidullin A.1, Samigullina A.1, Evtugin V.2, Vorobev V.2, Osin Y.2
-
Afiliações:
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
- Kazan (Volga Region) Federal University
- Edição: Volume 67, Nº 2 (2018)
- Páginas: 215-229
- Seção: Full Articles
- URL: https://journals.rcsi.science/1066-5285/article/view/242084
- DOI: https://doi.org/10.1007/s11172-018-2062-2
- ID: 242084
Citar
Acesso aberto
Acesso está concedido
Somente assinantes
Resumo
Efficient mediated electrosynthesis of nanocomposite Au@р(MVCA8+-co-St) (~6 nm), in which ultrasmall Au nanoparticles (Au-NP) were bound in nanocapsules of water-soluble nanoparticles of соpolymer р(MVCA8+-co-St) of tetraviologen calix[4]resorcinol (MVCA8+) with styrene (St), was accomplished by the reduction of AuI in aqueous medium. The quanti- tative reduction of AuI was carried out using the theoretically necessary amount of electricity and was not accompanied by the deposition of metal on the electrode. Radical cations of viologen units MV•+ of the molecule р(MVCA4•+-co-St) adsorbed on the electrode and π-dimers MV•+···MV•+ of π-polymers [р(MVCA4•+-co-St)]n deposited on the electrode act- ed as the reducing agents with respect to AuI. During electrolysis, the nanoparticles agglo- merated to 37—50 nm. The nanocomposite particles dispersed in ethanol had sizes of 72±16 nm and also contained Au-NP with sizes of 51±8 and 19±3 nm. The catalytic activity of the nanocomposite in the reduction of p-nitrophenol with sodium borohydride was demon- strated. A similar reduction of AgCl nanoparticles (~250 nm) led to the formation of silver nanoparticles with crystallite sizes in the range of 7—11 nm, the process was inefficient, however, even when using 250% of electricity, an incomplete reduction of AgCl was still observed.
Sobre autores
V. Yanilkin
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Autor responsável pela correspondência
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
N. Nastapova
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
R. Fazleeva
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
G. Nasretdinova
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
E. Sultanova
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
A. Ziganshina
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
A. Gubaidullin
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
A. Samigullina
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yanilkin@iopc.ru
Rússia, 8 ul. Akad. Arbuzova, Kazan, 420088
V. Evtugin
Kazan (Volga Region) Federal University
Email: yanilkin@iopc.ru
Rússia, “Analytical Microscopy” Interdisciplinary Center 18 ul. Kremlevskaya, Kazan, 420018
V. Vorobev
Kazan (Volga Region) Federal University
Email: yanilkin@iopc.ru
Rússia, “Analytical Microscopy” Interdisciplinary Center 18 ul. Kremlevskaya, Kazan, 420018
Yu. Osin
Kazan (Volga Region) Federal University
Email: yanilkin@iopc.ru
Rússia, “Analytical Microscopy” Interdisciplinary Center 18 ul. Kremlevskaya, Kazan, 420018
