@article{Hou2015, 
author = {Pengfei Hou and Penglei Cui and Hui Liu and Jianling Li and Jun Yang},
title = {Nanoscale noble metals with a hollow interior formed through inside-out diffusion of silver in solid-state core-shell nanoparticles},
year = {2015},
journal = {Nano Research},
volume = {8},
number = {2},
pages = {512-522},
keywords = {core-shell, nanoparticle, solid-state, hollow, noble metal, inside-out diffusion},
url = {https://www.sciopen.com/article/10.1007/s12274-014-0663-0},
doi = {10.1007/s12274-014-0663-0},
abstract = {Noble metal nanoparticles with hollow interiors and customizable shell compositions 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.}
}