Porous three-dimensional nanorod arrays through selective chemical etching of nanocomposites

摘要

Three-dimensional Cu-Si and Cu-SiO_2 nanorod arrays containing ~68 at% Cu have been fabricated by a glancing angle co-deposition technique. By selectively etching Cu in 0.05 M KCN methanol solution, porous nanorods with different shapes form, which are promising for applications in sensors, catalysts, and as medical capsules that are able to be loaded with functional materials.