Two-Way Alloying and Dealloying of Cadmium in Metalloid Gold Clusters.

The alloying of monometal nanoparticles with a transition element has recently attracted extensive interest; however, the dealloying of alloy nanoparticles has rarely been reported. Two-way alloying and dealloying in metal nanoparticles is not known so far to the best of our knowledge. In this work, for the first time, we successfully achieved two-way alloying and dealloying of cadmium in metalloid gold clusters via an antigalvanic reaction in combination with a quasi-antigalvanic reaction and demonstrated reactant-ion-dependent dealloying as well.