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Plasmon-Engineered Anti-Replacement Synthesis of Naked Cu Nanoclusters with Ultrahigh Electrocatalytic Activity

Abstract

Anti-replacement reaction between Au nanoparticles and Cu2+ ions is studied under the irradiation of nanosecond laser pulses at a wavelength of 532 nm. It is revealed that high-purity naked Cu nanoclusters, which have an average diameter of 2 nm, are extracted from the CuCl2 solution. The Au nanoparticles are also completely converted to Au3+ and Au+ ions by "hot holes". This is because of the plasmonic generated “hot electrons” which overcome the limitation of thermodynamic reaction between the Au nanoparticles and Cu2+ ions. Furthermore, we find that the naked Cu nanoclusters exhibit enhanced electrocatalytic performance 1500 times higher than that of the ligand-protected Cu nanoclusters with similar size to achieve oxygen reduction reaction.

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Publication details

The article was received on 14 Jul 2018, accepted on 07 Sep 2018 and first published on 07 Sep 2018


Article type: Paper
DOI: 10.1039/C8TA06789A
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Plasmon-Engineered Anti-Replacement Synthesis of Naked Cu Nanoclusters with Ultrahigh Electrocatalytic Activity

    S. Pan, X. Zhang, W. Lu and S. Yu, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA06789A

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