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Title: Proton conducting ceramics in membrane separations

Perovskite materials of the general formula SrCeO.sub.3 and BaCeO.sub.3 are provided having improved conductivity while maintaining an original ratio of chemical constituents, by altering the microstructure of the material. A process of making Pervoskite materials is also provided in which wet chemical techniques are used to fabricate nanocrystalline ceramic materials which have improved grain size and allow lower temperature densification than is obtainable with conventional solid-state reaction processing.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1178013
Assignee:
Savannah River Nuclear Solutions, LLC (Aiken, SC) SRO
Patent Number(s):
9,005,486
Application Number:
13/066,166
Contract Number:
AC09-08SR22470
Resource Relation:
Patent File Date: 2011 Apr 07
Research Org:
Savannah River Ecology Laboratory (SREL), Aiken, SC (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Nanoscale Effects on the Ionic Conductivity of Highly Doped Bulk Nanometric Cerium Oxide
journal, December 2006
  • Anselmi-Tamburini, U.; Maglia, F.; Chiodelli, G.
  • Advanced Functional Materials, Vol. 16, Issue 18, p. 2363-2368
  • DOI: 10.1002/adfm.200500415

Synthesis and electrical properties of BaCeO3-based proton conductors by calcinations of metal-polyvinyl alcohol gel
journal, February 2013

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