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:
Nov. 23, 2021
Filed:
Mar. 30, 2016
Applicant:
Massachusetts Institute of Technology, Cambridge, MA (US);
Inventors:
Bilge Yildiz, Cambridge, MA (US);
Nikolai Tsvetkov, Cambridge, MA (US);
Qiyang Lu, Cambridge, MA (US);
Assignee:
MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 71/02 (2006.01); B01J 23/83 (2006.01); H01M 4/90 (2006.01); H01B 1/08 (2006.01); C25B 11/077 (2021.01); B01D 53/22 (2006.01); H01M 8/124 (2016.01);
U.S. Cl.
CPC ...
B01D 71/024 (2013.01); B01J 23/83 (2013.01); C25B 11/0773 (2021.01); H01B 1/08 (2013.01); H01M 4/9025 (2013.01); H01M 4/9033 (2013.01); B01D 53/228 (2013.01); B01J 2523/00 (2013.01); B01J 2523/24 (2013.01); B01J 2523/842 (2013.01); B01J 2523/845 (2013.01); C01P 2002/34 (2013.01); H01M 2008/1293 (2013.01);
Abstract
A method and a composition to stabilize the surface cation chemistry of the perovskite or related oxides, and thus, to minimize or completely avoid the detrimental segregation and phase separation of dopant cations at the surface can include modifying the surface with more oxidizable metal cations and/or more oxidizable metal oxides, thereby reducing the oxygen vacancy concentration at the very surface.