Fabrication of micro-Ni arrays by electroless and electrochemical depositions with etched porous aluminum template

Bulletin of materials science

Houfang Lu²  Kangping Yan²  Jixin Yan¹  Jianzhong Wang¹ 

[1] Postdoctoral Scientific Research Working Station of Jiangsu United Technology Group, Tongzhou 226361, P.R. China$$Postdoctoral Scientific Research Working Station of Jiangsu United Technology Group, Tongzhou 226361, P.R. ChinaPostdoctoral Scientific Research Working Station of Jiangsu United Technology Group, Tongzhou 226361, P.R. China$$;College of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China$$College of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. ChinaCollege of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China$$

关键词: Template;    nickel;    electrochemical deposition;    electroless deposition.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Nickel micro-arrays were fabricated by electroless and electrochemical deposition in an etched porous aluminum membrane. The aluminum membrane with metal characteristic could be fabricated from high-purity aluminium by electrochemical method. The aluminum reduced Ni²⁺ into Ni and the formed Ni nuclei served as the catalyst for further reduction of Ni²⁺ in electroless solution. With the help of the membrane, nickel micro-columns of about 1â€�??2 𝜇m diameter were obtained. The surface-deposited nickel layer served as a substrate for the nickel micro-columns, and the resulting material possessed strong mechanical strength. Electrochemical deposition was operated without preparing a conductive layer on the template due to the conductivity of the aluminum membrane. Nickel micro-tubes with an outer diameter of about 1â€�??2 𝜇m and a wall thickness in the order of tens of nm were obtained. The nickel micro-arrays were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).

【 授权许可】

Unknown