KFU. Card publication. Electrochemical synthesis of metal nanoparticles using a polymeric mediator, whose reduced form is adsorbed (deposited) on an electrode

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ELECTROCHEMICAL SYNTHESIS OF METAL NANOPARTICLES USING A POLYMERIC MEDIATOR, WHOSE REDUCED FORM IS ADSORBED (DEPOSITED) ON AN ELECTRODE

Form of presentation

Articles in international journals and collections

Year of publication

2018

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Authors, employees of KFU

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. Evtugin, V. V. Vorobev, and Yu. N. Osin, Electrochemical synthesis of metal nanoparticles using a polymeric mediator, whose reduced form is adsorbed (deposited) on an electrode // Russ. Chem. Bull. – 2018. – 67. – 215—229.

Annotation

Efficient mediated electrosynthesis of nanocomposite Au@�(MVCA8+-co-St) (~6 nm), in which ultrasmall Au nanoparticles (Au-NP) were bound in nanocapsules of water-soluble nanoparticles of ��polymer �(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 �(MVCA4?+-co-St) adsorbed on the electrode and π-dimers MV?+???MV?+ of π-polymers [�(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.

Keywords

resorcinarene, viologen, cavitand

The name of the journal

Russian Chemical Bulletin

URL

https://link.springer.com/article/10.1007/s11172-018-2062-2#citeas

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=262903&p_lang=2

Full metadata record

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, �. Yu. Ziganshina, A. T. Gubaidullin, �. I. Samigullina, V. G. Evtugin, V. V. Vorobev, and Yu. N. Osin, Electrochemical synthesis of metal nanoparticles using a polymeric mediator, whose reduced form is adsorbed (deposited) on an electrode // Russ. Chem. Bull. – 2018. – 67. – 215—229.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=262903&p_lang=2	ru_RU
dc.description.abstract	Russian Chemical Bulletin	ru_RU
dc.description.abstract	Efficient mediated electrosynthesis of nanocomposite Au@�(MVCA8+-co-St) (~6 nm), in which ultrasmall Au nanoparticles (Au-NP) were bound in nanocapsules of water-soluble nanoparticles of ��polymer �(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 �(MVCA4?+-co-St) adsorbed on the electrode and π-dimers MV?+???MV?+ of π-polymers [�(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.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	resorcinarene	ru_RU
dc.subject	viologen	ru_RU
dc.subject	cavitand	ru_RU
dc.title	Electrochemical synthesis of metal nanoparticles using a polymeric mediator, whose reduced form is adsorbed (deposited) on an electrode	ru_RU
dc.type	Articles in international journals and collections	ru_RU