超便捷高表面积3D多孔镍的可控设计探究

The Controllable Design Study of Fabricating 3D Porous Ni with High Surface Area

基于优化的全新的电镀液:醋酸,硫酸镍和添加剂PEG4000,本文采用氢气泡模板法设计出了高比表面积的3D多孔镍薄膜。详细地探究了电流密度、镀液温度、沉积时间等工艺参数对多孔镍薄膜的空隙结构(比表面积,孔隙率)的影响规律。此外,采用场发射电子扫描显微镜对样品的微观结构进行分析,并证明样品具有良好且均匀性好的多孔性,孔壁内存在大量空隙,以及比表面积高达138 cm^2/mg。

Based on the optimal novel electroplating solution: acetic acid,nickel sulfate and additive PEG4000,a 3D porous nickel films with high specific surface area have been designed by hydrogen bubble template method.The effects of process parameters,such as current density,bath temperature and deposition time,on the void structures (specific surface area,porosity) of porous nickel films were investigated in detail.In addition,the microstructures of the sample were analyzed by field emission electron scanning microscopy,and the samples were proved to have promising and uniform porosity with a large number of voids in the pore wall and a specific surface area of up to 138 cm^2/mg.