Mediated electrosynthesis of silver nanoparticles in a two-phase water—isooctane system

Journal Article · Thu Aug 15 04:00:00 EDT 2019 · Russian Chemical Bulletin

DOI:https://doi.org/10.1007/S11172-019-2587-Z· OSTI ID:22943127

Nasretdinova, G. R. ^[1]; Osin, Yu. N. ^[2]; Yanilkin, V. V. ^[1]

---

1. Arbuzov Institute of Organic and Physical Chemistry, Federal Research Center “Kazan Scientific Center of the Russian Academy of Sciences” (Russian Federation)
2. Kazan (Volga Region) Federal University, Interdisciplinary Center “AnalyticalMicroscopy” (Russian Federation)

Efficient electrosynthesis of silver nanoparticles (AgNPs) in bulk solution of a two-phase water—isooctane system is carried out by electrolysis in an undivided cell in the presence of methylviologen (MV{sup 2+}) used as a mediator. Silver nanoparticles are formed in the aqueous phase of the system as a result of the electroreduction of Ag{sup +} ions generated in situ by dissolving the Ag anode at potentials of the redox couple MV{sup 2+}/MV{sup ·+}. The obtained AgNPs are stabilized by an anionic surfactant, sodium dioctyl sulfosuccinate, and are distributed throughout both the aqueous and the organic phases. All the nanoparticles would transfer to the organic phase after the obtained solution was kept in the dark for 48 h. In addition to dissolution, the Ag anode undergoes dispersion during electrolysis, therefore the total current yield of the obtained AgNPs is 175%. According to electron microscopy, the formed AgNPs are polydisperse and their size ranges from 5 to 71 nm. A surface plasmon resonance of AgNPs in the solution obtained after electrolysis was observed in the region of 418–463 nm.

• OSTI ID: 22943127
• Journal Information: Russian Chemical Bulletin, Journal Name: Russian Chemical Bulletin Journal Issue: 8 Vol. 68; ISSN RCBUEY; ISSN 1066-5285
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANODES
ELECTROLYSIS
ELECTRON MICROSCOPY
NANOPARTICLES
PLASMONS
SILVER
SILVER IONS
SODIUM
SURFACES
SURFACTANTS
YIELDS