摘要
Noble metal nanoparticles with hollow interiors and customizable shell com- positions have immense potential for a wide variety of applications. Herein, we present a facile, general, and cost-effective strategy for the synthesis of noble metal nanoparticles with hollow structures, which is based on the inside-out diffusion of Ag in solid-state core-shell nanoparticles. This approach starts with the preparation of core-shell nanoparticles with Ag residing in the core region, which are then loaded on a solid substrate and aged in air to allow the inside-out diffusion of Ag from the core region, leading to the formation of monometallic or alloy noble metal nanoparticles with a hollow interior. The synthesis was carried out at room temperature and could be achieved on different solid substrates. In particular, the inside-out diffusion of Ag calls for specific concern with respect to the evaluation of the catalytic performance of the Ag-based core--shell nanoparticles since it may potentially interfere with the physical and chemical properties of the core-shell particles.
有空内部和可定制的壳作文的高贵金属 nanoparticles 为许多应用有巨大的潜力。此处，我们在场为有空结构的高贵金属 nanoparticles 的合成的灵巧、一般、划算的策略，它基于在内外面 Ag 在的散开固态核心壳 nanoparticles。这条途径与居住在核心区域的 Ag 以核心壳 nanoparticles 的准备开始，它然后在稳固的底层上被装载并且在空中变老允许在内外面从核心区域的 Ag 的散开，导致形成一金属或合金有一个空内部的高贵金属 nanoparticles 。合成在房间温度被执行并且能在不同稳固的底层上被完成。特别地，自从它，在内外面，为关于基于 Ag 的核心壳 nanoparticles 的催化表演的评估的特定的担心的 Ag 电话的散开可以潜在地防碍核心壳粒子的物理、化学的性质。
