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Prevention of aerobic oxidation of copper nanoparticles by anti-galvanic alloying: gold versus silver

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Abstract

Preservation from easy aerobic Cu(0) oxidation in Cu nanoparticles (NPs) is of interest for electronic, sensing, optical and catalytic properties. An anti-galvanic (AG) method is presented here for this purpose. Remarkably, alloying CuNPs with AuNPs or AgNPs followed by exposure to air only leads to Cu(0) oxidation to Cu(I) in AgCu alloyed NPs, whereas Cu(0) is not oxidized in AuCu alloyed NPs in which Au(I) forms. This result is also verified by “click” catalysis experiments.

Graphical abstract: Prevention of aerobic oxidation of copper nanoparticles by anti-galvanic alloying: gold versus silver

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Publication details

The article was received on 03 Jul 2017, accepted on 21 Aug 2017 and first published on 21 Aug 2017


Article type: Communication
DOI: 10.1039/C7CC05129H
Citation: Chem. Commun., 2017, Advance Article
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    Prevention of aerobic oxidation of copper nanoparticles by anti-galvanic alloying: gold versus silver

    X. Liu, J. Ruiz and D. Astruc, Chem. Commun., 2017, Advance Article , DOI: 10.1039/C7CC05129H

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