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Proton conducting ceramics in membrane separations

Patent ·
OSTI ID:1178013

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.

Research Organization:
Savannah River Ecology Laboratory (SREL), Aiken, SC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC09-08SR22470
Assignee:
Savannah River Nuclear Solutions, LLC (Aiken, SC)
Patent Number(s):
9,005,486
Application Number:
13/066,166
OSTI ID:
1178013
Country of Publication:
United States
Language:
English

References (4)

Structure/Property Relations in Bulk Versus Solution Derived Proton Conducting Ceramics of the Form SrCe 0.95 Yb 0.05 O 3 With Applications in Membrane Separations journal January 2010
Synthesis and electrical properties of BaCeO3-based proton conductors by calcinations of metal-polyvinyl alcohol gel journal February 2013
Synthesis and Application of Porous Sm 0.2 Ce 0.8 O 1.9 Nanocrystal Aggregates journal September 2009
Nanoscale Effects on the Ionic Conductivity of Highly Doped Bulk Nanometric Cerium Oxide journal December 2006

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