title: Synergistic catalysis of Au@Ag core-shell nanoparticles stabilized on metal-organic framework.
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.
authors.affiliation: National Institute of Advanced Industrial Science and Technology, Ikeda, Osaka 563-8577, Japan.
authors.forename: Hai-Long
authors.initials: HL
authors.lastname: Jiang
authors.forename: Tomoki
authors.initials: T
authors.lastname: Akita
authors.forename: Tamao
authors.initials: T
authors.lastname: Ishida
authors.forename: Masatake
authors.initials: M
authors.lastname: Haruta
authors.forename: Qiang
authors.initials: Q
authors.lastname: Xu