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

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.
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Journal articles
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Submitted on : Monday, November 13, 2017 - 9:49:31 AM
Last modification on : Monday, March 11, 2019 - 4:10:25 PM

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Xiang Liu, Jaime Ruiz, Didier Astruc. Prevention of aerobic oxidation of copper nanoparticles by anti-galvanic alloying: gold versus silver. Chemical Communications, Royal Society of Chemistry, 2017, 53 (81), pp.11134 - 11137. ⟨10.1039/C7CC05129H⟩. ⟨hal-01633482⟩

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