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Title: Cobalt-substituted perovskite compounds for solid oxide electrochemical cells

Abstract

Oxygen electrodes are provided, comprising a perovskite compound having Formula (I), Sr(Ti1-xFex-yCoy)O3-δ wherein 0.90 ≥ x ≥ 0.40 and 0.02 ≥ y ≥ 0.30. Electrochemical devices comprising such oxygen electrodes are also provided, comprising a counter electrode in electrical communication with the oxygen electrode, and a solid oxide electrolyte between the oxygen electrode and the counter electrode. Methods of using such electrochemical devices are also provided, comprising exposing the oxygen electrode to a fluid comprising O2 under conditions to induce the reaction O2+4e→2O2−, or to a fluid comprising O2− under conditions to induce the reaction 2O2−→O2+4e.

Inventors:
; ;
Issue Date:
Research Org.:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Org.:
USDOE; National Science Foundation (NSF)
OSTI Identifier:
2293962
Patent Number(s):
11843123
Application Number:
16/976,013
Assignee:
Northwestern University (Evanston, IL)
DOE Contract Number:  
SC0016965; 1545907; DMR-1506925
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/01/2019
Country of Publication:
United States
Language:
English

Citation Formats

Zhang, Shan-Lin, Barnett, Scott A., and Lu, Matthew. Cobalt-substituted perovskite compounds for solid oxide electrochemical cells. United States: N. p., 2023. Web.
Zhang, Shan-Lin, Barnett, Scott A., & Lu, Matthew. Cobalt-substituted perovskite compounds for solid oxide electrochemical cells. United States.
Zhang, Shan-Lin, Barnett, Scott A., and Lu, Matthew. Tue . "Cobalt-substituted perovskite compounds for solid oxide electrochemical cells". United States. https://www.osti.gov/servlets/purl/2293962.
@article{osti_2293962,
title = {Cobalt-substituted perovskite compounds for solid oxide electrochemical cells},
author = {Zhang, Shan-Lin and Barnett, Scott A. and Lu, Matthew},
abstractNote = {Oxygen electrodes are provided, comprising a perovskite compound having Formula (I), Sr(Ti1-xFex-yCoy)O3-δ wherein 0.90 ≥ x ≥ 0.40 and 0.02 ≥ y ≥ 0.30. Electrochemical devices comprising such oxygen electrodes are also provided, comprising a counter electrode in electrical communication with the oxygen electrode, and a solid oxide electrolyte between the oxygen electrode and the counter electrode. Methods of using such electrochemical devices are also provided, comprising exposing the oxygen electrode to a fluid comprising O2 under conditions to induce the reaction O2+4e−→2O2−, or to a fluid comprising O2− under conditions to induce the reaction 2O2−→O2+4e−.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {12}
}

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