In the schoolbook of Chinese junior high school chemistry, there is a law, which said “When a metal in elemental form is placed in a solution of another metal salt it may be more energetically feasible for this "elemental metal" to exist as an ion and the "ionic metal" to exist as the element. Therefore the elemental metal will "displace" the ionic metal and the two swap places. Only a metal higher in the activity series will displace another.” This law suggested that, silver can exchange by the Au+ and produce gold and Ag+, and this reaction is irreversible. This law greatly limits the alloys synthesized method which we can use. Herein, we reported how to synthesize alloy nanocluster by using the inert metal nanolcuster as the template to react with the salt of higher activity metal. This metal exchange method is expected to become a versatile new approach for synthesizing alloy nanoclusters that contain both high- and low-activity metal atoms.

Templated synthesis of Alloy nanocluster with atomically precise: Metal exchange

252nd National Meeting (2016)

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