An Easy Way to Construct an Ordered Array of Nickel Nanotubes: The Triblock-Copolymer-Assisted Hard-Template Method


  • Financial support from the National Natural Science Foundation of China (NSFC) under major project (20490210) and surface project (Nos. 20571040 and 20371026) and the US National Science Foundation is greatly appreciated. Supporting Information is available online from Wiley InterScience or from the author.


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Ordered arrays of nickel nanotubes (see figure) have been prepared by a novel and universal approach, utilizing the triblock copolymer Pluronic P123 without any surface modification to the porous alumina template. The wall thickness of the nickel nanotubes can be adjusted by the electric current density and electrodeposition time. Magnetic measurements on the array of Ni nanotubes reveal an enhanced coercivity compared to bulk Ni.