Molecular Oxygen as Mediator in the Metal Nanoparticles’ Electrosynthesis in N,N-Dimethylformamide

Publication date

March 2020

Journal

Russian Journal of Electrochemistry

Abstract

© 2018, Pleiades Publishing, Ltd. Ultra-fine gold (<2 nm), silver (5 ± 2 nm), and palladium (<1–2 nm) nanoparticles stabilized in polyvinylpyrrolidone shell were synthesized in N,N-dimethylformamide, using molecular oxygen dissolved in the electrolyte as mediator, by the reduction of the metals’ ions and complexes at the controlled potential of the oxygen reduction to its radical-anion. Pd-nanoparticles showed high catalytic activity in the reactions of p-nitrophenol reduction and Suzuki cross-coupling. Long-term ageing of spherical Ag-nanoparticles for 60 days in the post- electrolysis solution resulted in their consolidation (up to 17 ± 5 nm; the average size of crystallites 7.5 (3) nm). Upon similar exposure of Au-nanoparticles for 15 da...

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Molecular Oxygen as Mediator in the Metal Nanoparticles’ Electrosynthesis in N,N-Dimethylformamide

Abstract

Extracted data

Molecular Oxygen as Mediator in the Metal Nanoparticles’ Electrosynthesis in N,N-Dimethylformamide

Abstract

Extracted data

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