Synthesis of ˜10 nm size Cu/Ag core-shell nanoparticles stabilized by an ethoxylated carboxylic acid for conductive ink

[Display omitted] Bimetallic Cu-Ag Core-shell nanoparticles were synthesized by the reduction of copper 2-[2-(2-methoxyethoxy)ethoxy]acetate with hydrazine hydrate in benzyl alcohol followed by the reduction of silver ions on the copper surface using a galvanic replacement reaction. The morphology a...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2019-09, Vol.577, p.500-508
Main Authors: Titkov, Alexander I., Logutenko, Olga A., Vorobyov, Alexander M., Yu. Gerasimov, Evgeny, Shundrina, Inna K., Bulina, Natalya V., Lyakhov, Nikolay Z.
Format: Article
Language:English
Subjects:
Conductive inks
Copper
Core-shell nanoparticles
Printed electronics
Silver
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Summary:[Display omitted] Bimetallic Cu-Ag Core-shell nanoparticles were synthesized by the reduction of copper 2-[2-(2-methoxyethoxy)ethoxy]acetate with hydrazine hydrate in benzyl alcohol followed by the reduction of silver ions on the copper surface using a galvanic replacement reaction. The morphology and Core-shell structure of the nanoparticles so prepared were investigated by X-ray phase analysis, high-resolution transmission electron microscopy, X-ray energy dispersive spectrometry and optical spectroscopy. The effect of synthesis conditions such as temperature, synthesis time, silver-to-copper molar ratio, and the rate of addition of silver nitrate to the system on thickness, density, and uniformity of the silver shell was studied. The silver coated copper nanoparticles were shown to exhibit improved stability to oxidation.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2019.06.008