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:
Feb. 28, 2017
Filed:
Apr. 09, 2014
Applicant:
Syddansk Universitet, Odense M, DK;
Inventors:
Eivind Skou, Odense SØ, DK;
Casper Noergaard, Frederiksberg, DK;
Serban Nicolae Stamatin, Bucharest, RO;
Assignee:
Syddansk Universitet, Odense M, DK;
Primary Examiner:
Int. Cl.
CPC ...
C22B 11/00 (2006.01); C25C 1/20 (2006.01); C25C 5/02 (2006.01); C22B 3/44 (2006.01); C22B 3/00 (2006.01);
U.S. Cl.
CPC ...
C25C 1/20 (2013.01); C22B 3/44 (2013.01); C22B 11/04 (2013.01); C22B 11/048 (2013.01); C25C 5/02 (2013.01); Y02P 10/214 (2015.11); Y02P 10/234 (2015.11);
Abstract
A method for recovering platinum group metals from a catalytic structure, such as a fuel cell membrane electrode assembly, involving dissolution of the platinum group metal by treating the catalytic structure in an electrolytic cell with a suitable electrolyte containing a complexing agent and introducing an electric current into the electrolytic cell; and subsequently re-precipitating the platinum group metal by increasing the pH of the electrolyte system and adding a reducing agent.