The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2017
Filed:
Jan. 20, 2014
Applicant:
City University of Hong Kong, Kowloon, HK;
Inventors:
Assignee:
CITY UNIVERSITY OF HONG KONG, Kowloon, HK;
Primary Examiner:
Int. Cl.
CPC ...
C25F 3/02 (2006.01); H01L 31/0224 (2006.01); H01M 4/38 (2006.01); C25D 13/02 (2006.01); C25D 13/12 (2006.01);
U.S. Cl.
CPC ...
C25F 3/02 (2013.01); C25D 13/02 (2013.01); C25D 13/12 (2013.01); H01L 31/022425 (2013.01); H01M 4/38 (2013.01); Y02E 10/50 (2013.01);
Abstract
A nanoporous metal structure is made by etching a metal alloy structure of two or more metals. Less than all of the metals are selectively removed (e.g., dissolved in solution) from the alloy in the presence of an alternating voltage profile, for example, a periodic voltage profile. The resulting nanoporous metal structure, having pore openings of about 20 nm to about 500 nm in diameter and a purity of at least about 70%, can be further treated to alter some or all of the structure, and/or to add, remove and/or modify properties thereof.