Cu0.3Mn0.7去合金化制备纳米多孔铜块体材料

采用去合金化法对Cu0.3Mn0.7合金进行自腐蚀制备出厚度为1 mm的纳米多孔铜块体材料。采用XRD、SEM、EDS、AAS等分析了样品的相组成、微观形貌和元素含量。结果表明：样品在室温0.1 mol/L盐酸溶液中自腐蚀10 d，得到成分单一，结构均匀的三维连通纳米多孔铜块体材料，其表面平均孔径尺寸约125 nm，平均骨架尺寸约80 nm，横截面平均孔径尺寸约300 nm。

Fabrication of Bulk Nanoporous Copper by Dealloying of Cu0.3Mn0.7 Alloy

A bulk nanoporous copper with thickness of 1 mm was fabricated from freely corroded Cu0.3Mn0.7 alloy by means of dealloying. The phases and microstructure of samples were analyzed by XRD, FESEM, EDS and AAS. The results indicate the nanoporous copper with a uniform monolithic structure in three-dimension can be created by free-corrosion dealloying Cu0.3Mn0.7 alloy in 0.1 mol/L HCl solution for 10 d, with an average surface pore diameter of 125 nm and an average ligament size of 80 nm, also with an average cross section pore diameter of 300 nm.