Electrochemical fabrication of 2D and 3D nickel nanowires using porous anodic alumina templates

• Published in: Applied physics. A, Materials science & processing Vol. 122; no. 6; pp. 1 - 9
• Main Authors: Mebed, A. M., Abd-Elnaiem, Alaa M., Al-Hosiny, Najm M.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2016
• Subjects: Aluminum oxide; Anodic; Arrays; Characterization and Evaluation of Materials; Condensed Matter Physics; Machines; Manufacturing; Materials science; Nanotechnology; Nanowires; Nickel; Nucleation; Optical and Electronic Materials; Physics; Physics and Astronomy; Processes; Surface area; Surfaces and Interfaces; Thin Films; Alumina Template; Barrier Layer; Porous Anodic Alumina; Nanowires Array; Show Scanning Electron Microscopy Image
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-016-0099-3

Mechanically stable nickel (Ni) nanowires array and nanowires network were synthesized by pulse electrochemical deposition using 2D and 3D porous anodic alumina (PAA) templates. The structures and morphologies of as-prepared films were characterized by X-ray diffraction and scanning electron microscopy, respectively. The grown Ni nanowire using 3D PAA revealed more strength and larger surface area than has grown Ni use 2D PAA template. The prepared nanowires have a face-centered cubic crystal structure with average grain size 15 nm, and the preferred orientation of the nucleation of the nanowires is (111). The diameter of the nanowires is about 50–70 nm with length 3 µm. The resulting 3D Ni nanowire lattice, which provides enhanced mechanical stability and an increased surface area, benefits energy storage and many other applications which utilize the large surface area.