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Issue 14, 2018
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Ni-introduced CuAu nanocages: facile co-reduction synthesis of a novel magnetic multi-metallic nanostructure with high peroxidase mimetic activity

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Abstract

In this study, a simple and mild route was designed for the synthesis of novel octahedral Ni-introduced CuAu nanocages via a co-reduction process. Based on sequential reactions, Cu2O/Au nano-octahedra were firstly prepared through galvanic displacement reaction by employing octahedral Cu2O as the template, and then nickel and copper were introduced almost simultaneously to form the Ni-introduced CuAu nanocages by using N2H4·H2O as the reducing agent and excess Cu2O as the copper source. The peroxidase-like activity of the Ni-introduced CuAu nanocages was tested and the relevant parameters of their enzymatic activity were also investigated systematically. Compared with monometallic Cu2O/Au nano-octahedra, Ni-introduced CuAu nanocages have superior catalytic activity, and such a magnetic catalyst could still keep a relatively high catalytic efficiency after several cycles. The results showed that the as-prepared magnetic multi-metallic nanocages could be used as an efficient recyclable peroxidase-like catalyst.

Graphical abstract: Ni-introduced CuAu nanocages: facile co-reduction synthesis of a novel magnetic multi-metallic nanostructure with high peroxidase mimetic activity

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Publication details

The article was received on 14 Dec 2017, accepted on 21 Feb 2018 and first published on 21 Feb 2018


Article type: Paper
DOI: 10.1039/C7CE02165H
Citation: CrystEngComm, 2018,20, 1978-1984
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    Ni-introduced CuAu nanocages: facile co-reduction synthesis of a novel magnetic multi-metallic nanostructure with high peroxidase mimetic activity

    C. Liu, L. Li, Q. Su, F. Wu, J. Dong and W. Qian, CrystEngComm, 2018, 20, 1978
    DOI: 10.1039/C7CE02165H

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