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  • Title: Synergistic catalysis of Au@Ag core-shell nanoparticles stabilized on metal-organic framework.
    Author: Jiang HL, Akita T, Ishida T, Haruta M, Xu Q.
    Journal: J Am Chem Soc; 2011 Feb 09; 133(5):1304-6. PubMed ID: 21214205.
    Abstract:
    For the first time, this work presents Au@Ag core-shell nanoparticles (NPs) immobilized on a metal-organic framework (MOF) by a sequential deposition-reduction method. The small-size Au@Ag NPs reveal the restriction effects of the pore/surface structure in the MOF. The modulation of the Au/Ag ratio can tune the composition and a reversed Au/Ag deposition sequence changes the structure of Au-Ag NPs, while a posttreatment process transforms the core-shell NPs to a AuAg alloy. Catalytic studies show a strong bimetallic synergistic effect of core-shell structured Au@Ag NPs, which have much higher catalytic activities than alloy and monometallic NPs.
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