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Compositions, methods and devices for generating nanotubes on a surface

  • US 9,376,759 B2
  • Filed: 03/13/2013
  • Issued: 06/28/2016
  • Est. Priority Date: 09/14/2010
  • Status: Active Grant
First Claim
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1. A method for modifying a surface by generating nanotubes at one or more selected sites on the surface, the surface comprising a first metal, the method comprising:

  • positioning at least one cathode and at least one anode relative to the surface in an electrolyte solution comprising a fluoride salt of a second metal; and

    applying a voltage between the at least one anode and the at least one cathode sufficient to generate nanotubes at one or more selected sites on the surface by removing a portion of the first metal from the surface by etching, and to inhibit nanotube formation at one or more of the other selected sites, wherein the nanotubes comprise the first metal and the second metal;

    wherein the electrolyte solution comprises AgF or CaF2.

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