电化学溶解金属铜制备纳米CuO

Preparation of Nanocrystalline Cupric Oxide by Electrochemical Dissolution of Copper Metal

随着纳米材料研究的深入,目前,普遍认为溶胶-凝胶法是制备纳米材料的有效方法[1,2]. 但这些方法存在设备复杂、起始原料价格昂贵、操作条件要求苛刻等缺点.

The precursor Cu(acac) 2 was electrochemically prepared by anodic dissolution of fresh metallic copper in absolute acetylacetone using Bu 4N·Br as supporting electrolyte. Nanocrystalline CuO could be obtained by direct hydrolysis of the electrolyte solution via refluxing with some amount of NaOH and water. FTIR, elemental analysis, XRD and TEM have been used to investigate the structure of the precursor and nanocrystalline CuO. The results showed that the cupric oxide obtained is of spherical structure with size distribution ranged in 10 nm to 20 nm. The rational electrode potential in electrolysis appeared to be 1 2~1 8 V( vs .SCE).