Fabrication of cobalt-nickel binary nanowires in a highly ordered alumina template via AC electrodeposition

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Cobalt-nickel (Co-Ni) binary alloy nanowires of different compositions were co-deposited in the nanopores of highly ordered anodic aluminum oxide (AAO) templates from a single sulfate bath using alternating current (AC) electrodeposition. AC electrodeposition was accomplished without modifying or removing the barrier layer. Field emission scanning electron microscope was used to study the morphology of templates and alloy nanowires. Energy-dispersive X-ray analysis confirmed the deposition of Co-Ni alloy nanowires in the AAO templates. Average diameter of the alloy nanowires was approximately 40 nm which is equal to the diameter of nanopore. X-ray diffraction analysis showed that the alloy nanowires consisted of both hexagonal close-packed and face-centered cubic phases. Magnetic measurements showed that the easy x-axis of magnetization is parallel to the nanowires with coercivity of approximately 706 Oe. AC electrodeposition is very simple, fast, and is useful for the homogenous deposition of various secondary nanostuctured materials into the nanopores of AAO.
Publisher
SPRINGER
Issue Date
2013-08
Language
English
Article Type
Article
Keywords

NI-CO ALLOY; PULSE ELECTRODEPOSITION; GIANT MAGNETORESISTANCE; MAGNETIC-PROPERTIES; NANOPOROUS ALUMINA; EVOLUTION REACTION; ANODIC ALUMINA; ARRAYS; DEPOSITION; MEMBRANES

Citation

NANOSCALE RESEARCH LETTERS, v.8

ISSN
1556-276X
DOI
10.1186/1556-276X-8-352
URI
http://hdl.handle.net/10203/189376
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