Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating selected area
Reexamination Certificate
2011-08-30
2011-08-30
Van, Luan V (Department: 1724)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating selected area
Reexamination Certificate
active
08007650
ABSTRACT:
Disclosed is a low-cost, high quality metal nanotube comprising Ni, Fe, Co or the like. A metal thin film having a thickness of 10 to 80 nm is formed as a cathode on one surface of a film having penetrated holes, and an electrolyte solution is filled between an anode and the cathode to which a voltage is applied. Metal ions in the electrolyte solution are electrochemically deposited on the walls of the penetrated holes, thereby forming metal nanotubes. A thermoplastic resin porous film such as a polycarbonate film, an alumina porous film or aluminum anodic oxide film may be used as the film, and the diameters of the penetrated holes are preferably 15 to 500 nm. The metal thin film can be formed by sputtering, and preferably comprises a platinum-palladium alloy. The electrochemical processing of nanostructured tailored materials is a unique technique.
REFERENCES:
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patent: 2003-25298 (2003-01-01), None
patent: 2004-118124 (2004-04-01), None
Brumlik et al. (“Template Synthesis of Metal Microtubule Ensembles Utilizing Chemical, Electrochemical, and Vacuum Deposition Techniques,” Accession No. ADA274676, published by Defense Technical Information Center, Jan. 11, 1994).
Peng et al. (“Bismuth quantum-wires arrays fabricated by electrodeposition in nanoporous anodic aluminum oxide and its structural properties,” Materials Science and Engineering B, vol. 77, Issue 3, Sep. 29, 2000, pp. 246-249).
Tourillon et al. (“ChemInform Abstract: Electrochemically Synthesized Co and Fe Nanowires and Nanotubes,” Elec.
Martin (“Membrane-based Synthesis of Nanomaterials,” Chem mater. 1996, 8, 1739-1746).
Bao (“Template Synthesis of an Array of Nickel Nanotubules and Its Magnetic Behavior,” Adv. Mater., 2001, 13 No. 21, Nov. 2, 2001) teach a similar process.
International Search Report; PCT/JP2004/015066; Date of Mailing: Feb. 1, 2005.
Fukunaka Yasuhiro
Ishii Ryuji
Konishi Yoko
Motoyama Munekazu
Antonelli, Terry Stout & Kraus, LLP.
Fukunaka Yasuhiro
Van Luan V
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