Nano-copper has superplastic ductility, which can be elongated more than 50 times at room temperature without cracks. Recently, researchers at the French National Research Center found that copper nanocrystals with an average volume of only 80 nanometers have amazing mechanical properties, not only three times higher strength than ordinary copper, but also very uniform deformation, without obvious regional narrowing. This is the first time scientists have observed such a perfect elastoplastic behavior of matter. The mechanical properties of copper nanocrystals have opened up bright prospects for the manufacture of elastic materials at room temperature.

In addition, Copper and its alloy nanopowders are used as catalysts with high efficiency and strong selectivity. They can be used as catalysts in the reaction process of carbon dioxide and hydrogen to methanol.