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Title: Oxygen ion-conducting dense ceramic

Abstract

Preparation, structure, and properties of mixed metal oxide compositions containing at least strontium, cobalt, iron and oxygen are described. The crystalline mixed metal oxide compositions of this invention have, for example, structure represented by Sr.sub..alpha. (Fe.sub.1-x Co.sub.x).sub..alpha.+.beta. O.sub..delta. where x is a number in a range from 0.01 to about 1, .alpha. is a number in a range from about 1 to about 4, .beta. is a number in a range upward from 0 to about 20, and .delta. is a number which renders the compound charge neutral, and wherein the composition has a non-perovskite structure. Use of the mixed metal oxides in dense ceramic membranes which exhibit oxygen ionic conductivity and selective oxygen separation, are described as well as their use in separation of oxygen from an oxygen-containing gaseous mixture.

Inventors:
 [1];  [2];  [3];  [4];  [2]
  1. Hinsdale, IL
  2. Naperville, IL
  3. Lisle, IL
  4. Las Cruces, NM
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
OSTI Identifier:
870712
Patent Number(s):
5580497
Assignee:
Amoco Corporation (Chicago, IL)
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
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
oxygen; ion-conducting; dense; ceramic; preparation; structure; properties; mixed; metal; oxide; compositions; containing; strontium; cobalt; iron; described; crystalline; example; represented; sr; alpha; 1-x; beta; delta; range; 01; upward; 20; renders; compound; charge; neutral; composition; non-perovskite; oxides; membranes; exhibit; ionic; conductivity; selective; separation; oxygen-containing; gaseous; mixture; oxide compositions; perovskite structure; oxide composition; ionic conductivity; ceramic membranes; mixed metal; oxygen-containing gas; gaseous mixture; metal oxide; metal oxides; ceramic membrane; containing gas; compositions containing; dense ceramic; oxygen ion-conducting; oxygen-containing gaseous; oxygen separation; charge neutral; compositions contain; ion-conducting dense; crystalline mixed; containing gaseous; /252/204/429/501/

Citation Formats

Balachandran, Uthamalingam, Kleefisch, Mark S, Kobylinski, Thaddeus P, Morissette, Sherry L, and Pei, Shiyou. Oxygen ion-conducting dense ceramic. United States: N. p., 1996. Web.
Balachandran, Uthamalingam, Kleefisch, Mark S, Kobylinski, Thaddeus P, Morissette, Sherry L, & Pei, Shiyou. Oxygen ion-conducting dense ceramic. United States.
Balachandran, Uthamalingam, Kleefisch, Mark S, Kobylinski, Thaddeus P, Morissette, Sherry L, and Pei, Shiyou. Mon . "Oxygen ion-conducting dense ceramic". United States. https://www.osti.gov/servlets/purl/870712.
@article{osti_870712,
title = {Oxygen ion-conducting dense ceramic},
author = {Balachandran, Uthamalingam and Kleefisch, Mark S and Kobylinski, Thaddeus P and Morissette, Sherry L and Pei, Shiyou},
abstractNote = {Preparation, structure, and properties of mixed metal oxide compositions containing at least strontium, cobalt, iron and oxygen are described. The crystalline mixed metal oxide compositions of this invention have, for example, structure represented by Sr.sub..alpha. (Fe.sub.1-x Co.sub.x).sub..alpha.+.beta. O.sub..delta. where x is a number in a range from 0.01 to about 1, .alpha. is a number in a range from about 1 to about 4, .beta. is a number in a range upward from 0 to about 20, and .delta. is a number which renders the compound charge neutral, and wherein the composition has a non-perovskite structure. Use of the mixed metal oxides in dense ceramic membranes which exhibit oxygen ionic conductivity and selective oxygen separation, are described as well as their use in separation of oxygen from an oxygen-containing gaseous mixture.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

Works referenced in this record:

Crystallographic properties of and mössbauer effect in Sr4Fe6O13
journal, January 1972


X-Ray Characterization of 7SrO.5Fe2O3
journal, January 1974


Structure of Sr4Fe6O13, a new perovskite-derivative in the SrFeO system
journal, February 1986