Porous Metals

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The review gives an overview of the different techniques to produce porous metals, like in a traditional textbook, but we discuss these methods in the context of their flexibility and ability to control and tailor the architecture from the nm to the macroscopic size scale. We correlate the different fabrication methods with the properties of the resulting porous metals and present potential applications. Finally, we outline a wet-chemical deposition route to metallic copper, which can be applied to a wide variety of flat and spherical substrates, giving access to both copper sponges with defined porosity and relative density as well as complex macroscopic shapes and to copper line patterns on flexible substrates.

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