DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Segregation resistant perovskite oxides with surface modification

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.

Inventors:
; ;
Issue Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE; National Science Foundation (NSF)
OSTI Identifier:
1860086
Patent Number(s):
11179682
Application Number:
15/563,535
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
DMR1055583; DMR1419807; SC0002633
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/30/2016
Country of Publication:
United States
Language:
English

Citation Formats

Yildiz, Bilge, Tsvetkov, Nikolai, and Lu, Qiyang. Segregation resistant perovskite oxides with surface modification. United States: N. p., 2021. Web.
Yildiz, Bilge, Tsvetkov, Nikolai, & Lu, Qiyang. Segregation resistant perovskite oxides with surface modification. United States.
Yildiz, Bilge, Tsvetkov, Nikolai, and Lu, Qiyang. Tue . "Segregation resistant perovskite oxides with surface modification". United States. https://www.osti.gov/servlets/purl/1860086.
@article{osti_1860086,
title = {Segregation resistant perovskite oxides with surface modification},
author = {Yildiz, Bilge and Tsvetkov, Nikolai and Lu, Qiyang},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {11}
}

Works referenced in this record:

Compound semiconductors and their application
patent, January 2014


Stabilized perovskite for ceramic membranes
patent, November 2000


Catalyst
patent, September 2010


Catalyst system for purifying oxygen rich exhaust gas
patent, May 2002


Solar Cell and Method of Manufacturing the Solar Cell
patent-application, July 2014