Abstract
Hollow nanostructures are of great interest in many current and emerging areas of technology. In the last few years, a variety of ideas to fabricate hollow nanostructures (e.g., hollow nanospheres, nanoboxes, nanocages, and nanotubes) have been proposed. This review work covers several typical methods to fabricate hollow nanoparticles and nanotubes. The methods introduced in this article are categorized into two parts: one is based on the chemical synthesis routes including conventional templating-etching and galvanic replacement and the other is based on the Kirkendall effect, which is a diffusional phenomena at the solid–solid interface. Furthermore, structural stability of hollow nanoparticles and nanotubes during annealing at high temperatures is discussed.
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