Abstract: In recent years, due to their superior chemical, mechanical and surface Raman scattering property, nanoporous metals, which are new types of functional materials with ultrahigh specific surface area and bi-continuous network at nano-scale, have been widely used in many fields such as catalysis, sensing, new energy and bio-medical engineering. In this paper, detailed review is carried out on some research works related to preparation, mechanical property and scale-sensitive performance of nanoporous metals, with an emphasis on scaling law, failure mechanism, surface effects and dealloying process, and some future directions are also prospected.
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