Pd@Ag/Au空腔核壳纳米颗粒的SPR特性、催化特性及其储氢性能的探究

We designed a core-shell structure composed of ternary metals: the core of Pd nanocubes, and the porous shell layer of Ag/Au alloys. The product exhibited excellent SPR feature, thus better absorbing visible and near-infrared light. The Pd@Ag/Au hollow core-shell nanostructures showed significantly improved performance in phenyl acetylene production. The yield of coupling product against other products increased from about 1:8 to 1:2 by using this unique nanostructure, together with the increase in total quantity of various products. Although the Pd@Ag/Au core-shell nanostructures did not yield a very large quantity of coupling product, the yield was still more than 3 times that by other catalysts. The Pd@Ag/Au nanostructures also possessed high performance in hydrogen adsorption, storage and release, demonstrating their potential cycling use in hydrogen storage. This work provides a new approach to the design of plasmonic catalytic materials, and offers new insights for designing the catalysts of organic coupling reactions. It also produces the nanocatalysts with good hydrogen storage properties and recycling performance.